| actinomycetes | With pl. concord. Rod-shaped or filamentous Gram-positive bacteria belonging to a… | 1885 | Go To Quotation |
| additivity | The condition or property of being additive. | 1904 | Go To Quotation |
| adeno-associated | Designating any of a group of parvoviruses which are dependent upon a helper virus… | 1965 | Go To Quotation |
| allotypy | The occurrence of an immunoglobulin or other protein in genetically… | 1956 | Go To Quotation |
| alphatron | A proposed name for: a cyclotron. rare. disused. | 1942 | Go To Quotation |
| antihypertensive | Of a naturally occurring substance, a drug, or a form of treatment: that lowers… | 1941 | Go To Quotation |
| anti-rabic | Having the property of counteracting the virus of rabies; curing, or relating to the cure of, rabies. | 1887 | Go To Quotation |
| aquifer | A water-bearing or aquiferous stratum. | 1901 | Go To Quotation |
| araneology | The department of zoology relating to spiders. | 1884 | Go To Quotation |
| archibenthal | Belonging to or inhabiting the archiˈbenthos n. or depths of the primitive (palæozoic) ocean. | 1904 | Go To Quotation |
| Arctogaean | Of or belonging to the zoogeographical division Arctogaea. | 1885 | Go To Quotation |
| art moderne | Modern art; spec. a streamlined style in applied art and architecture, popular esp. in the 1930s (freq. attrib.). | 1900 | Go To Quotation |
| asteroseismologist | An expert in or student of asteroseismology. | 1991 | Go To Quotation |
| astronautics | With sing. concord. The science and practice of space flight and human activity in… | 1928 | Go To Quotation |
| autoxidator | A substance which undergoes autoxidation; esp. an oxidized intermediate which causes further oxidation. | 1883 | Go To Quotation |
| autoxidizable | Capable of undergoing autoxidation. | 1883 | Go To Quotation |
| bacitracin | An antibiotic obtained from organisms of the group Bacillus subtilis. | 1945 | Go To Quotation |
| ballas | A tough aggregate of minute, concentrically arranged diamond crystals, occurring… | 1931 | Go To Quotation |
| ballon-sonde | A small balloon used to carry instruments for recording atmospheric conditions into… | 1898 | Go To Quotation |
| Bielid | An Andromede. So called because supposed to come from the remains of Biela's comet (named… | 1885 | Go To Quotation |
| bioadhesive | An adhesive substance produced by or obtained from living organisms, or used on living, esp. mucosal, tissue. | 1967 | Go To Quotation |
| biochrome | A naturally occurring substance which imparts colour to the tissues of plants or animals. | 1944 | Go To Quotation |
| bioclastic | Designating or relating to sedimentary rock (esp. limestone) consisting of the… | 1903 | Go To Quotation |
| bioengineering | The application to biological processes of techniques derived from engineering; (also) the… | 1950 | Go To Quotation |
| biogeographer | An expert or specialist in biogeography. | 1898 | Go To Quotation |
| biohazard | A risk to people or the environment, esp. one arising out of biological or medical… | 1965 | Go To Quotation |
| bioinorganic | Of or relating to both biology and inorganic chemistry; spec. designating… | 1970 | Go To Quotation |
| biometeorology | The branch of science concerned with the effect of environmental and atmospheric… | 1939 | Go To Quotation |
| biomimetic | Modelled on or resembling a natural biological material, process, etc.; (of a… | 1960 | Go To Quotation |
| bio-organic | Of or relating to organic compounds involved or produced in biological processes… | 1936 | Go To Quotation |
| biosystematics | With sing. concord. The classification of organisms using evidence from genetic… | 1943 | Go To Quotation |
| caffeinated | Containing caffeine, whether naturally or as an additive. Usually (and esp. of coffee or tea) opposed to decaffeinated. | 1932 | Go To Quotation |
| caption | trans. To provide with a caption, heading, or title; to entitle. | 1901 | Go To Quotation |
| chemotaxonomically | From a chemotaxonomic point of view; as regards chemotaxonomy. | 1969 | Go To Quotation |
| Chloromycetin | A trade-name for chloramphenicol. | 1947 | Go To Quotation |
| chymotrypsin | A proteolytic enzyme secreted in the pancreatic juice as chymotrypsinogen n. and activated by trypsin. | 1933 | Go To Quotation |
| Cincinnatian | Of or belonging to the town of Cincinnati in Ohio; spec. in Geol. designating a series of… | 1899 | Go To Quotation |
| clavacin | A crystalline antibiotic substance produced in several fungi; spec. that obtained from Aspergillus clavatus. | 1942 | Go To Quotation |
| clo | A unit of thermal resistance used to express the insulating properties of clothing (see quots. 1941, 1986). Cf. tog n. 3. | 1941 | Go To Quotation |
| coesite | A modification of quartz formed under pressure. | 1954 | Go To Quotation |
| comfort zone | The range of temperatures within which an environment is comfortable or habitable… | 1923 | Go To Quotation |
| comparativist | One who employs a comparative method. spec. one who studies comparative linguistics… | 1887 | Go To Quotation |
| Coxsackie | Name of a town in New York State (see quot. 1949), used attrib. to designate any… | 1949 | Go To Quotation |
| cultigen | A cultivated plant species or variety of which no wild ancestor has been identified. | 1918 | Go To Quotation |
| culturology | The science or study of culture or a culture. | 1920 | Go To Quotation |
| cytogeneticist | An expert or specialist in cytogenetics. | 1931 | Go To Quotation |
| deinstitutionalization | The process or action of removing (a person) from an institution, such as a mental… | 1974 | Go To Quotation |
| digitalized | = digitized adj. at digitize v. Derivatives. | 1959 | Go To Quotation |
| docoglossate | Of or pertaining to the Docoglossa, a group of gastropod molluscs having transverse… | 1884 | Go To Quotation |
| download | trans. To copy (data) from one computer system to another (now usually from a web server… | 1976 | Go To Quotation |
| dynein | A protein with ATPase activity that is responsible for the movement of cilia, flagella… | 1965 | Go To Quotation |
| econometrics | With sing. concord. The branch of statistical theory concerned with the analysis… | 1931 | Go To Quotation |
| ectothermic | Characterized by a body temperature that is entirely determined by the… | 1946 | Go To Quotation |
| electroantennography | The recording of electrical activity in an insect's antenna; the making of electroantennograms. | 1973 | Go To Quotation |
| electrodynamism | A supposed accumulation of nervous energy in the brain. Obs. rare. | 1887 | Go To Quotation |
| electro-osmotic | Of, relating to, or of the nature of electro-osmosis. | 1897 | Go To Quotation |
| electrovalence | The property of forming chemical bonds by electrostatic attraction between positive… | 1921 | Go To Quotation |
| enchylema | A liquid supposed to exist in the form of ‘alveolar spheres’ in a continuous, usu. more viscous liquid. | 1886 | Go To Quotation |
| erosional | Caused by erosion. | 1903 | Go To Quotation |
| Esperanto | An artificial language invented for universal use by Dr. Ludovik Lazarus Zamenhof… | 1892 | Go To Quotation |
| etheriform | Having the form of ether: see ether n. 5. | 1885 | Go To Quotation |
| evo-devo | A branch of biology concerned with the interaction of evolutionary and developmental processes. | 1997 | Go To Quotation |
| exclusivity | = exclusiveness n., exclusivism n. | 1926 | Go To Quotation |
| fracture | intr. for refl. To suffer fracture; to break. | 1800 | Go To Quotation |
| fumarolic | Of or belonging to a fumarole; formed by a fumarole. | 1903 | Go To Quotation |
| fumigacin | = helvolic acid n. at helvolic adj. | 1942 | Go To Quotation |
| genoneme | = chromonema n. | 1934 | Go To Quotation |
| genotype | Originally: a pure (inbred or true-breeding) line of an organism (disused). In later… | 1909 | Go To Quotation |
| geochronometric | Of or relating to geochronometry (geochronometry n.). | 1951 | Go To Quotation |
| geomathematics | With sing. concord. The application of mathematical and computational techniques to geology; mathematical geology. | 1963 | Go To Quotation |
| geotherm | Originally: = isogeotherm n. Now usually: a graph of temperature as a function of depth… | 1908 | Go To Quotation |
| geratology | The science of the phenomena of decadence, esp. those characteristic of a species or… | 1884 | Go To Quotation |
| glossophorous | Having a tongue: said of certain Mollusca. | 1885 | Go To Quotation |
| gnathostomulid | An animal of the phylum Gnathostomulida. | 1969 | Go To Quotation |
| Gnathostomulida | With pl. concord: a small phylum of minute acoelomate worms which typically occur in… | 1961 | Go To Quotation |
| gumbotil | A leached grey clay, very sticky when wet and very hard when dry, found extensively in Iowa and neighbouring states. | 1916 | Go To Quotation |
| Heidelberg | Used attrib. with reference to an extinct hominid, Homo heidelbergensis, first known from… | 1909 | Go To Quotation |
| heliothid | Belonging to or having the character of the Heliothidæ. | 1884 | Go To Quotation |
| hemisect | trans. To bisect, esp. longitudinally, or into the right and left halves. | 1885 | Go To Quotation |
| historiometry | The statistical analysis of historical data in order to make a quantitative… | 1909 | Go To Quotation |
| holotype | A specimen chosen as the basis of the first description of a new species. | 1897 | Go To Quotation |
| hydroxocobalamin | An analogue of cyanocobalamin (vitamin B 12) in which the cyanide ion is replaced by a hydroxide (OH−) ion. | 1950 | Go To Quotation |
| hypermutability | The state or condition of undergoing mutation at a high rate, or of being highly prone to mutation. | 1959 | Go To Quotation |
| hypermutant | An organism exhibiting a major phenotypic change as a result of mutation. rare. disused. | 1934 | Go To Quotation |
| iconograph | A drawing, engraving, or illustration for a book: = icon n. 1. | 1884 | Go To Quotation |
| ideogrammatic | Of the nature of an ideogram or ideograph; using symbols as a means of expression. | 1893 | Go To Quotation |
| immunocytochemical | Combining immunological and cytochemical techniques; of or relating to immunocytochemistry. | 1956 | Go To Quotation |
| immunostimulant | An agent that stimulates the function of the immune system. | 1971 | Go To Quotation |
| inhibin | A gonadal hormone which inhibits the secretion of follicle-stimulating hormone. | 1932 | Go To Quotation |
| iniomous | Of or pertaining to the Iniomi, an order or suborder of physostomous osteous fishes… | 1886 | Go To Quotation |
| internist | A general physician; also, a specialist in internal medicine. | 1904 | Go To Quotation |
| ionically | Physics and Chem. By means of ions or an ionic bond; as regards ions, in terms of ions. | 1908 | Go To Quotation |
| ionized | That has undergone ionization; containing ions. | 1896 | Go To Quotation |
| kelep | A Central American stinging ant, Ectatomma tuberculatum. | 1904 | Go To Quotation |
| Kennelly | Kennelly(– Heaviside) layer or region: = E-layer at E n. 10, Heaviside layer at Heaviside n. | 1925 | Go To Quotation |
| kennetic | (See quot. 1955.) Usu. in phr. kennetic inquiry. | 1950 | Go To Quotation |
| kimzeyite | A dark brown zirconian garnet. | 1958 | Go To Quotation |
| Kuiper belt | A region of the solar system located beyond the orbit of Neptune, between about 30… | 1988 | Go To Quotation |
| kunzite | A lilac-coloured variety of spodumene which is valued as a gem and becomes… | 1903 | Go To Quotation |
| lagerstätte | A fossil deposit of exceptional richness or interest. Also more fully fossil-lagerstatte. Usu. in pl. | 1972 | Go To Quotation |
| leprologist | An expert or specialist in the study or treatment of leprosy. | 1892 | Go To Quotation |
| magnetostatic | Of or relating to an unchanging magnetic field. | 1889 | Go To Quotation |
| malnourished | Suffering from malnutrition; not provided with adequate nourishment; undernourished. | 1911 | Go To Quotation |
| Mapharsen | An organic arsenical drug formerly given intravenously in the treatment of… | 1932 | Go To Quotation |
| Marek's disease | An infectious disease of poultry caused by a herpes virus, which results… | 1947 | Go To Quotation |
| maricultural | Of or relating to mariculture. | 1903 | Go To Quotation |
| mascon | Any of the regions of denser material thought to exist under some lunar maria (see mare n.… | 1968 | Go To Quotation |
| mechanochemical | Of or relating to mechanochemistry; of or relating to mechanochemical phenomena. | 1943 | Go To Quotation |
| mechanosensitivity | The state or quality of being mechanosensitive. | 1969 | Go To Quotation |
| megachilid | Designating, relating to, or belonging to the hymenopteran insect family Megachilidae… | 1912 | Go To Quotation |
| megalocyte | An abnormally large erythrocyte; = macrocyte n. Now rare. | 1886 | Go To Quotation |
| megalonychid | Designating or relating to extinct ground sloths of the family Megalonychidae. | 1942 | Go To Quotation |
| megavitamin | A large or concentrated dose of a vitamin. Freq. attrib., designating forms of therapy… | 1968 | Go To Quotation |
| Mendelism | The fundamental principles of inheritance (especially the laws of segregation… | 1903 | Go To Quotation |
| Mendelist | = Mendelian n. | 1906 | Go To Quotation |
| mercuration | The action or process of introducing mercury into a compound. | 1922 | Go To Quotation |
| mesal | = medial adj. 2b. Cf. mesial adj. | 1881 | Go To Quotation |
| meson | The median plane or midline of the body. | 1881 | Go To Quotation |
| mesophase | Cell Biol. A stage in cell division: (a) a point of arrest during the metaphase of meiosis; (b)… | 1908 | Go To Quotation |
| mesosomal | Of or relating to a bacterial mesosome. | 1964 | Go To Quotation |
| metabiology | Originally: the study of philosophical questions which arise from or relate… | 1906 | Go To Quotation |
| metageometrician | A person who studies non-Euclidean geometry. | 1903 | Go To Quotation |
| metallo-organic | = organometallic adj. | 1884 | Go To Quotation |
| methoxy | attrib. Of, relating to, or designating the methoxyl group or radical, CH 3 O—. | 1895 | Go To Quotation |
| methyltransferase | Any of a class of enzymes that catalyse the transfer of methyl groups between molecules. | 1959 | Go To Quotation |
| micrergate | A small worker ant. | 1902 | Go To Quotation |
| microaerophile | A microorganism that requires less oxygen than that of the atmosphere for optimal growth. | 1903 | Go To Quotation |
| microaerophilic | Requiring less oxygen than that of the atmosphere; of the nature of a microaerophile. | 1903 | Go To Quotation |
| microanatomic | = microanatomical adj. | 1953 | Go To Quotation |
| microbe | An extremely small living organism, a microorganism; esp. a bacterium causing disease or fermentation. Also in extended use. | 1880 | Go To Quotation |
| microbiological | Of or relating to microbiology. | 1880 | Go To Quotation |
| microbore | Of a pipe: having a very narrow bore. Of equipment, esp. a central heating system: incorporating such pipes. | 1967 | Go To Quotation |
| microchip | An integrated circuit; a microprocessor; (also) a tiny wafer of semiconducting material… | 1969 | Go To Quotation |
| microcode | trans. To program with microcode; to put into microcode. | 1981 | Go To Quotation |
| microdontic | Having or designating small teeth; exhibiting or affected by microdontia. | 1903 | Go To Quotation |
| microelectronics | Microcircuits or devices employing microcircuitry. | 1959 | Go To Quotation |
| microfauna | Ecol. With pl. concord: microscopic or very small animals (usually including protozoans… | 1895 | Go To Quotation |
| microfocus | Capable of being focused on a very small area; spec. (of an X-ray tube or other… | 1951 | Go To Quotation |
| micro-image | A very small image, esp. one which can be viewed only by means of magnification; spec. a microphotograph. | 1954 | Go To Quotation |
| microinjector | Any of various devices, usually employing pressure or electrical charge, used to perform microinjection. | 1930 | Go To Quotation |
| micromanipulation | The performance of extremely delicate procedures, such as the isolation or injection… | 1921 | Go To Quotation |
| micromolar | Designating an amount, or a molar concentration, of the order of micromoles. | 1946 | Go To Quotation |
| micronutrient | An essential nutrient required only in small amounts; esp. a trace element or vitamin. | 1940 | Go To Quotation |
| microphotometric | Of, relating to, or involving microphotometry. | 1921 | Go To Quotation |
| microsporocyte | A cell that divides to form microspores; a microspore mother cell. | 1906 | Go To Quotation |
| microtiter | Designating techniques or equipment used or designed for titration of small quantities of reagents, esp. in immunological tests. | 1961 | Go To Quotation |
| microvillar | = microvillous adj. | 1964 | Go To Quotation |
| microwaved | Irradiated with microwave radiation; spec. cooked or heated in a microwave oven. | 1971 | Go To Quotation |
| microworld | The world viewed on a microscopic or subatomic scale; a small-scale theoretical or… | 1923 | Go To Quotation |
| midsagittally | In or along the midsagittal plane. | 1960 | Go To Quotation |
| milieu intérieur | The extracellular fluid forming the environment of cells in a multicellular organism… | 1913 | Go To Quotation |
| minichromosome | A nucleoprotein complex consisting of viral DNA and histones and other proteins, formed… | 1975 | Go To Quotation |
| mischarged | Of a transfer RNA molecule: linked to an amino acid other than the one specific to it. | 1969 | Go To Quotation |
| misincorporated | Of a protein, etc.: that has been inserted by misincorporation. | 1965 | Go To Quotation |
| mispair | A mispaired base pair. | 1967 | Go To Quotation |
| miticidal | That kills mites; of, relating to, or designating a miticide or its action. | 1948 | Go To Quotation |
| moiréd | Having a moiré or watered appearance. | 1975 | Go To Quotation |
| molecular clock | A clock based on the behaviour of individual molecules. | 1965 | Go To Quotation |
| monobromated | = monobrominated adj. | 1880 | Go To Quotation |
| monocropping | The cultivation of monocrops; = monoculture n. 1a. | 1974 | Go To Quotation |
| monocytic | Of, relating to, or derived from a monocyte or monocytes. | 1927 | Go To Quotation |
| monodispersed | = monodisperse adj. | 1948 | Go To Quotation |
| monodomous | Of a colony of social hymenoptera, esp. ants: occupying a single nest. Of a population… | 1905 | Go To Quotation |
| monohybrid | A hybrid that is heterozygous for a single trait or gene; esp. one having one dominant… | 1902 | Go To Quotation |
| monolayer | Science. A layer or film one molecule thick. | 1924 | Go To Quotation |
| monophote | Designating, supplying, or relating to a single arc lamp on a circuit. | 1881 | Go To Quotation |
| monoplacophoran | Of, relating to, or designating a mollusc of the class Monoplacophora (see Monoplacophora n.). | 1959 | Go To Quotation |
| monorhinic | = monorhinal adj. | 1892 | Go To Quotation |
| monosome | Genetics. A sex chromosome (in a species with heterogametic sex determination). disused. | 1906 | Go To Quotation |
| monovular | Producing one ovum (per follicle or oestrous cycle). | 1906 | Go To Quotation |
| Montgomery | an areolar gland, consisting of a milk-secreting portion and and a lactiferous duct with associated sebaceous glands. | 1883 | Go To Quotation |
| moon rock | Rock found or occurring on the moon; spec. one brought back to earth by the Apollo… | 1934 | Go To Quotation |
| Moore's law | A broad principle relating to the rate at which the density of transistors in… | 1977 | Go To Quotation |
| mormyrid | Any of various thick-bodied freshwater fishes of the African family Mormyridae, many… | 1896 | Go To Quotation |
| mugilid | A fish of the family Mugilidae, a grey mullet. | 1904 | Go To Quotation |
| muktuk | The skin and outer blubber of a whale, used as food by the Inuit. | 1880 | Go To Quotation |
| multi-coating | Each of two or more coatings placed one over another, usually in order to reduce… | 1976 | Go To Quotation |
| multifocal | Having or relating to several foci or a range of focal lengths. | 1892 | Go To Quotation |
| multi-fuelled | = multi-fuel adj. | 1964 | Go To Quotation |
| multilamellated | = multilamellar adj. | 1969 | Go To Quotation |
| multimineral | Science. Involving or containing several different minerals. | 1977 | Go To Quotation |
| multiple-choice | Designating a question which presents several possible answers from which one (occas.… | 1914 | Go To Quotation |
| multiplexed | Incorporated into a multiplex signal or system; subjected to the action of a multiplexer. | 1964 | Go To Quotation |
| multiroomed | Occupying or having more than one room. Also fig. | 1968 | Go To Quotation |
| multisession | Consisting of, relating to, or involving more than one session. | 1957 | Go To Quotation |
| multitone | Characterized by or employing more than one musical or aural tone; = multitoned adj. 1. | 1960 | Go To Quotation |
| multiwell | Biol. Of a sample plate: having a number of wells. | 1962 | Go To Quotation |
| mummy disease | Originally: a fungal disease causing the mummification of the fruit of the guava. Now… | 1905 | Go To Quotation |
| mycangial | Of or relating to a mycangium or mycangia. | 1970 | Go To Quotation |
| mycobacterial | Of, relating to, or caused by mycobacteria. | 1937 | Go To Quotation |
| mycobacteriosis | Infection with or disease caused by mycobacteria; an instance of this. | 1938 | Go To Quotation |
| mycoplasmology | The scientific study of mycoplasmas. | 1965 | Go To Quotation |
| mycorrhizal | Of the nature of or relating to a mycorrhiza; associated with mycorrhizas. | 1900 | Go To Quotation |
| myelographic | Of, relating to, or obtained by myelography. | 1928 | Go To Quotation |
| Mylar | A proprietary name for: a form of polyester resin which is the condensation product… | 1952 | Go To Quotation |
| myofibroblast | A fibroblast showing some morphological and functional characteristics of a smooth muscle cell; a contractile fibroblast. | 1971 | Go To Quotation |
| myoplasm | In an ascidian egg: a portion of the cytoplasm, deep yellow in colour, that… | 1905 | Go To Quotation |
| myrmecophilic | = myrmecophilous adj. | 1969 | Go To Quotation |
| myrmecophytism | Myrmecophily (in a plant); the condition of living in a symbiotic relationship with ants. | 1920 | Go To Quotation |
| myrmekite | An intergrowth of plagioclase containing drops or wormlike forms of quartz. | 1911 | Go To Quotation |
| myth-information | Information which is widely held to be true but which is in fact flawed or… | 1966 | Go To Quotation |
| mythopoietic | = mythopoeic adj. | 1887 | Go To Quotation |
| Nahuatlan | = Nahuatl n. 1. rare. | 1897 | Go To Quotation |
| nanomole | One thousand-millionth of a mole (mole n.). Abbreviated nmol. | 1964 | Go To Quotation |
| nanoscale | On a scale of 10 −9 metre; having or involving dimensions in the range 1 to 100 nanometres; nanotechnological. | 1986 | Go To Quotation |
| nanostructure | A structure, esp. a semiconductor device, that has dimensions of a few nanometres. | 1978 | Go To Quotation |
| nanostructured | Of a material: having structure on a nanometre scale; composed of or containing particles of the size a few nanometres. | 1990 | Go To Quotation |
| nanovoltmeter | A voltmeter able to measure voltages of the order of nanovolts. | 1962 | Go To Quotation |
| narrowback | Physical Anthropol. In racial classification: a slimly built person of tall stature. Now disused. | 1921 | Go To Quotation |
| nebenkern | Any of various cytoplasmic structures situated beside, associated with, or resembling… | 1885 | Go To Quotation |
| negentropic | Of or relating to negentropy; causing or accompanied by a decrease in entropy or an… | 1964 | Go To Quotation |
| nemacide | = nematicide n. | 1929 | Go To Quotation |
| Nematodirus | A genus of nematode worms (family Trichostrongylidae) which are intestinal parasites… | 1911 | Go To Quotation |
| neo-behaviourist | A proponent or supporter of a modified or revived form of behaviourism. | 1941 | Go To Quotation |
| neomycin | An aminoglycoside antibiotic which is produced by a strain of Streptomyces fradiae and is… | 1949 | Go To Quotation |
| nepheline-syenite | A plutonic rock which resembles syenite in being composed of alkali feldspars and… | 1885 | Go To Quotation |
| nephropathic | Relating to or characterized by nephropathy. | 1916 | Go To Quotation |
| neu | Usu. in form neu: an oncogene originally identified in rat glioblastoma cells… | 1983 | Go To Quotation |
| neurobiochemistry | The biochemistry of neural processes or structures; the branch of science dealing with this. | 1958 | Go To Quotation |
| neuroblastic | Of, relating to, consisting of, or derived from neuroblasts; of the nature of a neuroblast. | 1895 | Go To Quotation |
| neurochemistry | The chemistry of neural processes or structures. | 1945 | Go To Quotation |
| neuroembryology | The embryology of the nervous system; the branch of science dealing with this. | 1933 | Go To Quotation |
| neurogeneticist | An expert or specialist in neurogenetics. | 1975 | Go To Quotation |
| neuroglioblastoma | = glioblastoma n. | 1985 | Go To Quotation |
| neurohormonal | Of, relating to, involving, or of the nature of a neurohormone. Also: = neuroendocrine adj. | 1940 | Go To Quotation |
| neuroleptic | Designating drugs that reduce agitation and confusion in psychotic patients. | 1958 | Go To Quotation |
| neurologic | = neurological adj. | 1896 | Go To Quotation |
| neuropharmacological | Of or relating to the action of drugs on the nervous system, or to the branch… | 1953 | Go To Quotation |
| neurophysin | Any of a family of proteins that act as carriers for the neurohypophysial peptide hormones oxytocin and vasopressin. | 1958 | Go To Quotation |
| niacinamide | = nicotinamide n. | 1944 | Go To Quotation |
| Nissl | the staining of neurons with Nissl's stain (see sense 4). | 1895 | Go To Quotation |
| Nobelist | A winner of a Nobel Prize. | 1936 | Go To Quotation |
| noble gas | Each of the elements helium, neon, argon, krypton, xenon, and radon, all of which… | 1901 | Go To Quotation |
| noctilucence | Marine bioluminescence; (later also) luminescence at night or in the dark. | 1893 | Go To Quotation |
| nodosaurid | A member of the family Nodosauridae (suborder Ankylosauria) of… | 1912 | Go To Quotation |
| nomographically | By means of a nomogram or nomograms. | 1949 | Go To Quotation |
| non-acidic | = non-acid adj. | 1907 | Go To Quotation |
| non-adaptively | Not adaptively; in a non-adaptive manner. | 1910 | Go To Quotation |
| nonanoate | A salt or ester, or the anion, of nonanoic acid. | 1965 | Go To Quotation |
| non-cellulosic | Not containing or derived from cellulose. | 1930 | Go To Quotation |
| non-genetically | Not by the agency of genes; not according to genetics. | 1946 | Go To Quotation |
| non-locality | The condition, state, or attribute of being non-local, esp. (Math. and Physics) in quantum phenomena (cf. non-local adj. 2). | 1953 | Go To Quotation |
| non-objectivity | Philos. The quality or condition of not being objective. | 1884 | Go To Quotation |
| non-pathogen | An organism or other agent that is non-pathogenic. | 1937 | Go To Quotation |
| non-planarity | The quality or condition of being non-planar. | 1945 | Go To Quotation |
| non-solid | Not solid (lit. and fig.). | 1887 | Go To Quotation |
| non-surgical | Of a disorder: not requiring surgery; (of a disorder or a patient) not customarily treated surgically. Cf. medical adj. 1b. | 1888 | Go To Quotation |
| normed | That has been normalized; (Math.) = normal adj. 12 (now rare). Cf. norm v. 1. | 1906 | Go To Quotation |
| normotension | Normal blood pressure; the condition of having normal blood pressure. | 1951 | Go To Quotation |
| normotensive | Having, characterized by, or designating normal blood pressure. | 1941 | Go To Quotation |
| Nothofagus | A genus of evergreen or deciduous trees of the family Fagaceae, allied to the beech but… | 1896 | Go To Quotation |
| Novachord | An electronic keyboard instrument spanning six octaves. | 1939 | Go To Quotation |
| nucleinic | = nucleic acid n. at nucleic adj. 1. | 1893 | Go To Quotation |
| nucleophile | A nucleophilic substance or molecule. | 1952 | Go To Quotation |
| nucleoprotein | Nucleic acid complexed with protein; a compound of this nature. Also: a protein… | 1906 | Go To Quotation |
| nukespeak | Euphemistic language used to allay public fear or suspicion of nuclear technology or nuclear war. | 1979 | Go To Quotation |
| nulliplex | Lacking the dominant allele (at a particular locus or loci). | 1911 | Go To Quotation |
| nullisomy | The state or condition of being nullisomic. | 1966 | Go To Quotation |
| obituarian | Engaged in writing an obituary. rare. | 1904 | Go To Quotation |
| oceanographic | Of or relating to oceanography. | 1891 | Go To Quotation |
| octocoral | = octocorallian n. | 1936 | Go To Quotation |
| odoriphore | A chemical group whose presence in the molecules of a substance causes the substance to have a smell. Also called osmophore. | 1900 | Go To Quotation |
| oestrogenized | Treated with oestrogen; subjected to the effect of oestrogen. | 1944 | Go To Quotation |
| off-road | That is off a road; not located or done on a road (now freq. with reference to the sport… | 1954 | Go To Quotation |
| oleophobic | Tending to repel, or not to absorb, oils or oily materials. | 1938 | Go To Quotation |
| oligotrophication | The process of becoming oligotrophic. | 1973 | Go To Quotation |
| on-board | That is on board a ship, aircraft, spacecraft, etc. | 1958 | Go To Quotation |
| oncogenic | Causing or initiating the development of a tumour or tumours; of or relating to oncogenesis. | 1941 | Go To Quotation |
| oncornaviral | Derived from or relating to an oncornavirus. | 1972 | Go To Quotation |
| ontologizing | The action of ontologize v.; an instance of this. | 1886 | Go To Quotation |
| opponens hallucis | A muscle of the foot corresponding to the opponens pollicis of the hand, best developed… | 1880 | Go To Quotation |
| opsin | Any of a group of glycoproteins which are combined with retinal in rhodopsin and… | 1951 | Go To Quotation |
| organotherapeutics | = organotherapy n. | 1899 | Go To Quotation |
| ornithomimid | Of, relating to, or designating dinosaurs of the theropod family Ornithomimidae of… | 1919 | Go To Quotation |
| Ornithomimus | A genus of small bipedal theropod dinosaurs of the late Cretaceous period, with… | 1896 | Go To Quotation |
| orthoceratoid | = orthoceratite n. | 1885 | Go To Quotation |
| orthogenetically | Biol. In an orthogenetic manner; according to the principles of orthogenesis. | 1907 | Go To Quotation |
| orthoplasy | J. M. Baldwin's term for: the retention and transmission by an organism… | 1897 | Go To Quotation |
| orthopsychiatry | A school or movement within psychiatry concerned with the development and prevention… | 1929 | Go To Quotation |
| osmolarity | The osmolar concentration of a solution. Cf. osmolality n. | 1948 | Go To Quotation |
| ostariophysan | A fish of the superorder Ostariophysi which includes the majority of freshwater fishes… | 1904 | Go To Quotation |
| osteichthyan | Of, relating to, or designating the bony fishes (class Osteichthyes); characteristic of fishes of this class. | 1915 | Go To Quotation |
| osteodystrophia fibrosa | = osteitis fibrosa n. | 1928 | Go To Quotation |
| osteopetrotic | Affected by osteopetrosis; of, relating to, or associated with osteopetrosis. | 1948 | Go To Quotation |
| Otomian | A group of related central Mexican languages, including Otomi and Mazahua, belonging… | 1900 | Go To Quotation |
| otosclerotic | Affected by otosclerosis; of, relating to, or associated with otosclerosis. | 1925 | Go To Quotation |
| outpocketing | An outward growth or movement of part of a surface so as to form a pocket-like or sac-like cavity; the cavity so formed. | 1900 | Go To Quotation |
| outseg | trans. To support or advocate a more segregationist policy than (another person). | 1963 | Go To Quotation |
| ovalized | That has become or been made oval in shape. | 1881 | Go To Quotation |
| overcurrent | Meteorol. A current of air flowing high in the atmosphere. Now rare or disused. | 1905 | Go To Quotation |
| overdeepen | trans. To erode (a valley) more deeply by glacial action than would occur by water erosion alone. | 1901 | Go To Quotation |
| overdeepening | The action or process of overdeepen v. | 1901 | Go To Quotation |
| overdischarge | trans. (refl.) and intr. To discharge stored electrical charge to such an extent as… | 1890 | Go To Quotation |
| overdispersed | Spread out to a greater degree or more evenly scattered than usual or expected… | 1931 | Go To Quotation |
| overdominant | Excessively dominant. | 1937 | Go To Quotation |
| over-exploit | trans. To exploit excessively; spec. to exploit (a natural resource) too quickly or to too great an extent. | 1899 | Go To Quotation |
| overflying | The action of overfly v. | 1947 | Go To Quotation |
| Overhauser effect | More fully nuclear Overhauser effect. An effect whereby changing the populations of spin… | 1955 | Go To Quotation |
| overmaturity | The condition which results from passing beyond the mature state; the state of being overmature. | 1889 | Go To Quotation |
| overspecialization | Too much specialization, esp. in training or in education. | 1886 | Go To Quotation |
| overspray | Sprayed paint, varnish, etc., which lands outside the intended area, or which does not adhere to the object being sprayed. | 1942 | Go To Quotation |
| oversteepening | The increasing of a slope to a steepness greater than is normal or stable; esp. the formation… | 1901 | Go To Quotation |
| overthrust | trans. To thrust (a mass of rock) over another, esp. along a fault plane at a… | 1895 | Go To Quotation |
| ovogonium | = oogonium n. 2. | 1906 | Go To Quotation |
| oxytonize | trans. To make oxytone; to pronounce or write with the stress on the last syllable. | 1887 | Go To Quotation |
| pacemaking | Physiol. and Med. That maintains a rhythmic physiological activity, esp. the beating of… | 1923 | Go To Quotation |
| palaeobiologic | = palaeobiological adj. | 1924 | Go To Quotation |
| palaeoecologist | An expert in or student of palaeoecology. | 1917 | Go To Quotation |
| palaeoentomology | The study of extinct and fossil insects. Also: the study of the remains of insects preserved in archaeological sites. | 1911 | Go To Quotation |
| palaeoethnobotany | The ethnobotany of the past; the archaeological study of remains of plants cultivated or utilized by early man. | 1959 | Go To Quotation |
| palaeophysiographic | Of or relating to palaeophysiography. | 1909 | Go To Quotation |
| palichthyologist | = palaeoichthyologist n. | 1901 | Go To Quotation |
| palingenic | Of or relating to palingenesis. | 1895 | Go To Quotation |
| palynologically | By means of palynology; from the point of view of palynology. | 1955 | Go To Quotation |
| panmixis | Random mating within a population (= panmixia n. 2). Also: (rare) a population within which this occurs (= panmixia n. 3). | 1943 | Go To Quotation |
| pantropical | Of a plant or animal: occurring in all regions of the tropics; (of a species' distribution) covering all tropical regions. | 1913 | Go To Quotation |
| parablastic | Of or relating to the parablast (parablast n. 2). | 1883 | Go To Quotation |
| parapatagium | A fold of skin between the neck and shoulder of a bird. | 1887 | Go To Quotation |
| parapatrically | As parapatric populations or species; by means of parapatric speciation. | 1969 | Go To Quotation |
| parapsychological | Of an intellectual system: fanciful. Obs. nonce-use. | 1887 | Go To Quotation |
| parascientist | A student or practitioner of parascience. | 1965 | Go To Quotation |
| parasitaemia | The presence of parasites in the blood. Also: an instance of this, or its extent in a particular case. | 1944 | Go To Quotation |
| parasympatholytic | Blocking or opposing the effects of parasympathetic nerve stimulation; anticholinergic. | 1946 | Go To Quotation |
| parenteral | Designating or involving the introduction of a drug or other substance into the body by… | 1906 | Go To Quotation |
| parenterally | by a parenteral route. | 1909 | Go To Quotation |
| parfocality | The property of being parfocal. | 1955 | Go To Quotation |
| parfocalize | trans. To make (lenses or a lens system) parfocal. | 1921 | Go To Quotation |
| parthenocarpy | The development of a (usually seedless) fruit without prior fertilization or pollination. | 1906 | Go To Quotation |
| pastillage | Archaeol. A form of decoration in which additional pieces of the modelling material… | 1883 | Go To Quotation |
| pathobiological | Of or relating to the study of pathogenic organisms. Obs. rare. | 1887 | Go To Quotation |
| patrocliny | Patroclinous inheritance. | 1916 | Go To Quotation |
| Pearson | Designating or relating to a correlation coefficient calculated from the product moment… | 1903 | Go To Quotation |
| pectinicorn | A beetle of the former group or section Pectinicornia (or Pectinicornes), comprising… | 1883 | Go To Quotation |
| peneplain | trans. To erode to a peneplain. | 1896 | Go To Quotation |
| penicilloic | any of a group of acids which are dicarboxylic acid derivatives of thiazolidine and… | 1945 | Go To Quotation |
| peptidic | Of, relating to, or of the nature of a peptide. | 1942 | Go To Quotation |
| peptogenic | Stimulating the formation of pepsin. Later also: having the quality of hydrolysing protein into soluble form (peptone). | 1886 | Go To Quotation |
| peptonization | The action or process of peptonizing something. | 1880 | Go To Quotation |
| Permo-Trias | = Permo-Triassic adj. n. | 1897 | Go To Quotation |
| peronium | In certain hydromedusae: a tentacle formed by an extension of the umbrellar ectoderm and lacking mesogloea. Usu. in pl. | 1880 | Go To Quotation |
| perosis | A deformity of the leg in poultry involving dislocation of the gastrocnemius tendon, thought… | 1931 | Go To Quotation |
| peroxidate | A product of oxidation by a peroxide; (spec. in Biochem.) a product of the peroxidation of a lipid. | 1909 | Go To Quotation |
| phalloidin | A toxic alkaloid obtained from the toadstool Amanita phalloides; (now) spec.… | 1909 | Go To Quotation |
| phallotoxin | Any of several closely related poisonous peptides present in the death… | 1968 | Go To Quotation |
| phenetics | Phenetic taxonomy; the systematics of phenotypes. | 1963 | Go To Quotation |
| phenolate | = phenoxide n. | 1883 | Go To Quotation |
| philoprogeneity | Love of one's progeny or offspring; = philoprogenitiveness n. 1. | 1888 | Go To Quotation |
| phonophotography | The photographic recording of sound waves (esp. those produced by speech or singing), by… | 1927 | Go To Quotation |
| phoroscope | L. Weiller's name for: a device for transmitting a picture along a wire by means… | 1889 | Go To Quotation |
| phosphoglyceride | Any of a group of phospholipids having a structure based on glycerol… | 1942 | Go To Quotation |
| phospholipoid | = phospholipid n. | 1914 | Go To Quotation |
| photobiology | The branch of biology that deals with the effects of light on living organisms. | 1923 | Go To Quotation |
| photochromic | Undergoing a change of colour or shade when illuminated; spec. of, relating to, or exhibiting photochromism. | 1881 | Go To Quotation |
| photochromics | The branch of technology that deals with photochromic substances and their applications. | 1962 | Go To Quotation |
| photoconductivity | The property of being photoconducting; the degree to which something is photoconductin. | 1924 | Go To Quotation |
| photodegrade | trans. To degrade by the action of light; to subject to photodegradation. | 1971 | Go To Quotation |
| photoduplicating | = photoduplication n. Usu. attrib. | 1922 | Go To Quotation |
| photodynamical | = photodynamic adj. photodynamic adj. Special uses. | 1938 | Go To Quotation |
| photomesic | Of or involving a photomeson. | 1948 | Go To Quotation |
| photomicrographer | A person who takes photomicrographs. | 1885 | Go To Quotation |
| photoperiodic | Of, relating to, or designating the effect of changes in the length of daily illumination… | 1922 | Go To Quotation |
| photophysics | The branch of science that deals with physical properties as affected by light and the physical effects of light. | 1909 | Go To Quotation |
| photoreactivable | Capable of undergoing reactivation (esp. reversal of genetic damage) under the influence… | 1952 | Go To Quotation |
| photoregulation | The regulation of a biological or chemical process by means of the intensity, duration, etc., of light. | 1968 | Go To Quotation |
| photosensitizer | Chem. and Biochem. A substance capable of initiating a chemical reaction by absorbing… | 1911 | Go To Quotation |
| photostimulator | An apparatus used for photostimulation. | 1961 | Go To Quotation |
| phototypesetter | A machine for phototypesetting; (also) a person who operates such a machine. | 1965 | Go To Quotation |
| phycomycetous | Of or relating to the former class Phycomycetes of lower fungi; of the nature of a phycomycete. | 1883 | Go To Quotation |
| phytochemically | As regards phytochemistry; by phytochemical methods. | 1969 | Go To Quotation |
| phytochemist | An expert in or student of phytochemistry. | 1914 | Go To Quotation |
| phytopathogenicity | The property of producing disease in plants. | 1947 | Go To Quotation |
| phytoplankton | Plankton consisting of microscopic plants. | 1897 | Go To Quotation |
| phytosaur | A crocodile-like reptile of the Late Triassic suborder Phytosauria. | 1904 | Go To Quotation |
| phytotoxic | Poisonous or injurious to plants. | 1930 | Go To Quotation |
| pinch effect | Physics. The constriction exhibited by a fluid through which a large electric current… | 1909 | Go To Quotation |
| pipettor | An instrument that allows remote operation of a pipette, usually by the attachment of… | 1942 | Go To Quotation |
| pipradrol | A piperidine derivative that acts as a central nervous system stimulant. | 1955 | Go To Quotation |
| pixel | Each of the minute areas of uniform illumination of which the image on a… | 1969 | Go To Quotation |
| placentoid | Resembling a placenta, or placental tissue. | 1885 | Go To Quotation |
| placode | A localized thickening of the ectoderm in a vertebrate embryo which contributes to… | 1907 | Go To Quotation |
| plagiotropy | = plagiotropism n. | 1898 | Go To Quotation |
| planktont | = plankter n. | 1897 | Go To Quotation |
| plasmolytically | By means of plasmolysis. | 1903 | Go To Quotation |
| plasterboard | A lightweight building board made of plaster with a reinforcing or strengthening… | 1891 | Go To Quotation |
| plastidome | The plastids of a cell collectively. | 1926 | Go To Quotation |
| plastin | A kind of protein found principally in the cytoskeleton and also associated with chromatin in the cell nucleus. | 1883 | Go To Quotation |
| plate-tectonic | Of or relating to plate tectonics. | 1970 | Go To Quotation |
| plate tectonics | With sing. concord. A theory in which the interactions of moving lithospheric plates (plate n.… | 1969 | Go To Quotation |
| platypussary | An enclosure or building in which platypuses are kept, esp. under conditions simulating those in which they live in the wild. | 1938 | Go To Quotation |
| plesiadapid | A primitive primate belonging to the extinct family Plesiadapidae, known from… | 1930 | Go To Quotation |
| Plesianthropus | An African fossil hominid of the former genus Plesianthropus, described from remains found… | 1938 | Go To Quotation |
| plessite | An inhomogeneous mixture of kamacite and taenite found in some iron meteorites. | 1885 | Go To Quotation |
| plumcot | A hybrid between the plum, Prunus domestica, and the apricot, Prunus armeniaca, developed… | 1903 | Go To Quotation |
| plumicorn | A tuft or crest of feathers on top of a bird's head; esp. either of the paired ear tufts typical of many owls. | 1883 | Go To Quotation |
| pluviculture | The art or science of rainmaking; the production and implementation of schemes for inducing rain. | 1925 | Go To Quotation |
| pneumatolytic | Involving or formed by pneumatolysis. | 1895 | Go To Quotation |
| pneumotach | A pneumotachograph. | 1961 | Go To Quotation |
| pnictide | A compound of a pnicogen with one or more elements or radicals of greater electropositivity. | 1966 | Go To Quotation |
| poikilocyte | An irregularly shaped (often elongated or pointed) red blood cell, characteristically seen in anaemias. | 1886 | Go To Quotation |
| pollen analysis | Palynology, esp. the branch of this that deals with fossil pollens. Cf. pollen diagram n.… | 1922 | Go To Quotation |
| pollinating | That pollinates, or facilitates pollination. | 1893 | Go To Quotation |
| poly | Polythene. Usu. attrib., designating items made of polythene, and in compounds. | 1964 | Go To Quotation |
| polyadenylation | The attachment of a polyadenylate moiety to a molecule (esp. messenger RNA). | 1973 | Go To Quotation |
| polyclone | A clone of cells derived from an initial small group of different parent cells. | 1975 | Go To Quotation |
| polycondense | trans. To cause to undergo polycondensation. | 1964 | Go To Quotation |
| polycondensed | That has undergone polycondensation. | 1964 | Go To Quotation |
| polyhedrosis | A fatal disease of caterpillars characterized by the presence of polyhedral virus particles. | 1947 | Go To Quotation |
| polymerase | An enzyme which catalyses the formation of a polymer, esp. a polynucleotide. | 1948 | Go To Quotation |
| polyribosome | = polysome n. 1. | 1962 | Go To Quotation |
| polysomal | Of or relating to a polysome (polysome n. 1). | 1962 | Go To Quotation |
| polysomnographer | An expert in polysomnography; a person who operates a polysomnogram. | 1989 | Go To Quotation |
| poroscope | An instrument for measuring the degree of porosity. | 1893 | Go To Quotation |
| postcentral | Situated behind the centre; spec. designating or situated in a convolution of the parietal… | 1880 | Go To Quotation |
| postdoctorate | = postdoctoral adj. | 1912 | Go To Quotation |
| postnaris | The opening between a nasal cavity and the pharynx; an internal naris (naris n. 2). | 1881 | Go To Quotation |
| prealbumin | Any plasma protein with an electrophoretic mobility which (in some techniques… | 1953 | Go To Quotation |
| precompress | trans. To compress prior to some other treatment or process; (Building) to apply precompression to. | 1920 | Go To Quotation |
| preformism | = preformationism n. | 1895 | Go To Quotation |
| preformist | = preformationist n. | 1895 | Go To Quotation |
| pre-professional | Prior or preliminary to professional training. | 1909 | Go To Quotation |
| prescriptorial | Existing before the use of writing. | 1896 | Go To Quotation |
| presoak | A soaking given prior to some process or treatment; spec. a soaking given to laundry before washing. | 1919 | Go To Quotation |
| presoaking | The soaking of something as a preliminary process or treatment; spec. the soaking of laundry before washing. | 1919 | Go To Quotation |
| probit | The unit which forms the scale into which percentages may be transformed so that… | 1934 | Go To Quotation |
| proctotrupoid | Of, relating to, or designating a wasp of the superfamily Proctotrupoidea… | 1903 | Go To Quotation |
| prolamine | Any of a class of proline-rich proteins which occur in the seeds of cereals and… | 1908 | Go To Quotation |
| propatagial | Of or relating to a propatagium; esp. designating or relating to certain muscles and… | 1887 | Go To Quotation |
| protoctist | An organism of the kingdom Protoctista; a eukaryote which is not an animal or a plant (or, in most schemes, a fungus). | 1968 | Go To Quotation |
| protologue | The type description of a species, genus, etc. In later use: spec. the full… | 1905 | Go To Quotation |
| protoplanet | A large diffuse body of matter in the process of accretion in orbit around the sun or… | 1948 | Go To Quotation |
| protopod | Zool. = protopodite n. | 1883 | Go To Quotation |
| protozoological | Of or relating to protozoology. | 1910 | Go To Quotation |
| Protura | With pl. concord. An order of minute, primitive, wingless insects with slender whitish… | 1915 | Go To Quotation |
| provirus | The genetic material of a DNA or RNA virus as incorporated into, and able to replicate with, the genome of a host cell. | 1950 | Go To Quotation |
| pseudo-event | Psychol. A false or imagined event; esp. an event a person believes has occurred which… | 1890 | Go To Quotation |
| pseudotuberculous | Resembling tuberculosis; granulomatous; of or relating to pseudotuberculosis. | 1899 | Go To Quotation |
| psychomimetic | = psychotomimetic adj. | 1957 | Go To Quotation |
| psychopathological | Of or relating to psychopathology; psychiatric; mentally unhealthy. | 1884 | Go To Quotation |
| psychopharmacological | Of or relating to psychopharmacology; (of a drug) psychotropic. | 1935 | Go To Quotation |
| psychophysic | = psychophysical adj. | 1883 | Go To Quotation |
| psychosomimetic | = psychotomimetic adj. | 1955 | Go To Quotation |
| pteroic | a crystalline acid whose tricyclic molecule is the basis of the structures of… | 1946 | Go To Quotation |
| pteroyl | An acyl radical derived from pteroic acid. Usu. attrib. and as a formative element… | 1946 | Go To Quotation |
| pteroylglutamic | any of a series of derivatives of pteroic acid which have a side chain consisting of one… | 1946 | Go To Quotation |
| quantasome | Originally: any of numerous granular structures seen by electron microscopy in… | 1962 | Go To Quotation |
| quasicrystal | An aggregation of atoms that resembles a crystal; spec. a solid which has some of… | 1922 | Go To Quotation |
| radiational | Of, relating to, or involving radiation. | 1899 | Go To Quotation |
| radioactivity | The property or condition of being radioactive. Also: the radiation emitted by… | 1899 | Go To Quotation |
| radioassay | trans. To perform a radioassay on. | 1952 | Go To Quotation |
| radiocolloidal | Of the nature of a radiocolloid; of or relating to a radiocolloid. | 1925 | Go To Quotation |
| radio energy | Energy transmitted in the form of radio waves. | 1919 | Go To Quotation |
| radiography | The process by which radiographs are made; the use of radiographs as an investigative… | 1896 | Go To Quotation |
| radiophysicist | An expert or specialist in radiophysics (radiophysics n.). | 1911 | Go To Quotation |
| Ranalian | Of or relating to the (former) order Ranales, comprising dicotyledonous families… | 1909 | Go To Quotation |
| ratooner | A plant that ratoons. | 1919 | Go To Quotation |
| rebreather | A closed-circuit breathing apparatus in which exhaled air is partially purified of… | 1920 | Go To Quotation |
| recalibration | The process or action of recalibrating an instrument or device. Also in extended use (cf. recalibrate v.). | 1889 | Go To Quotation |
| recessivity | Of a gene, inherited trait, etc.: the property or state of being recessive (recessive adj. 2). Cf. dominance n. 2. | 1905 | Go To Quotation |
| recombinant | Of genetic material: assembled by genetic recombination or genetic engineering. Of… | 1940 | Go To Quotation |
| reflectometry | The use of a reflectometer; measurement of a quantity by means of a reflectometer. | 1920 | Go To Quotation |
| reorientation | The action or process of reorienting; a fresh orientation. | 1888 | Go To Quotation |
| resequent | A stream whose course follows the dip of strata (in the manner of a consequent stream) but is… | 1901 | Go To Quotation |
| retrovirus | Any member of the family Retroviridae of enveloped, single-stranded RNA viruses… | 1976 | Go To Quotation |
| rheophilous | = rheophile adj. | 1941 | Go To Quotation |
| rhynchosporium | Any member of the genus Rhynchosporium of ascomycete fungi, the members of which cause… | 1918 | Go To Quotation |
| ripa | B. G. Wilder's name for: a line of reflection (folding back) of the ependyma of the brain. | 1881 | Go To Quotation |
| Rossby | Used attrib. with reference to Rossby's work in the fields of fluid flow and meteorology. | 1935 | Go To Quotation |
| rusticle | An elongated structure often found on underwater shipwrecks, somewhat like a stalactite… | 1986 | Go To Quotation |
| sedimentology | The branch of geology which deals with the nature and properties of sediments and sedimentary rocks. | 1932 | Go To Quotation |
| serotonin | 5-Hydroxytryptamine; a monoamine neurotransmitter, C 10 H 12 N 2 O, active in the… | 1948 | Go To Quotation |
| sinoite | Silicon oxynitride, Si 2 N 2 O, found as colourless orthorhombic crystals in some chondritic meteorites. | 1964 | Go To Quotation |
| sirenian | Any member of the order Sirenia of fish-like aquatic mammals. | 1883 | Go To Quotation |
| somatostatin | A peptide secreted in the hypothalamus and elsewhere whose actions include the inhibition… | 1973 | Go To Quotation |
| Soundex | Used, usu. attrib., with reference to a phonetic coding system intended to… | 1959 | Go To Quotation |
| speciation | The formation of new and distinct species in the course of evolution. | 1906 | Go To Quotation |
| spectrin | A fibrous protein constituent of the membranes of red blood cells, forming a network on the inside of the plasma membrane. | 1968 | Go To Quotation |
| spinthariscope | An instrument in which the rays emitted from the metal radium are evidenced by the production of tiny sparks. | 1903 | Go To Quotation |
| spliceosome | A large ribonucleoprotein complex involved in splicing m rna. | 1985 | Go To Quotation |
| Stark | Used attrib. with reference to an effect observed by Stark (Sitzungsber. der k. Preuss. Akad. der… | 1914 | Go To Quotation |
| strontic | Of or pertaining to strontium. (Said of salts: now superseded by the attrib. use of the n.) | 1883 | Go To Quotation |
| suberoxime | A crystalline compound which is the oxime of suberone (cycloheptanone). | 1883 | Go To Quotation |
| sulphonylurea | Any of the group of hypoglycæmic drugs containing the active grouping SO 2 ·NH·CO·NH… | 1956 | Go To Quotation |
| supergranular | Of or relating to supergranulation. | 1965 | Go To Quotation |
| Taser | A weapon which fires barbs attached by wires to batteries, and causes temporary paralysis. | 1972 | Go To Quotation |
| taxodont | Of a bivalve shell: Having the hinge formed by a long series of similar teeth and sockets… | 1896 | Go To Quotation |
| tendinal | = tendinous adj. | 1887 | Go To Quotation |
| terrarium | A vivarium for land animals; esp. a glass case, or the like, in which small land animals are kept under scientific observation. | 1890 | Go To Quotation |
| time-shifted | Moved forward or backward with regard to timing. | 1960 | Go To Quotation |
| tris | The crystalline compound (HOCH 2) 3 CNH 2, 2-amino-2-(hydroxymethyl)propane-1,3-diol, used… | 1959 | Go To Quotation |
| troctolite | (See quot. 1892.) | 1883 | Go To Quotation |
| tropeine | Generic name for the esters or compund ethers of tropine. | 1883 | Go To Quotation |
| ultrathin | Extremely thin; spec. in Biol., applied to a section cut with an ultramicrotome. | 1949 | Go To Quotation |
| unglaciated | (un- prefix 8.) | 1883 | Go To Quotation |
| vallated | Surrounded by or as by a wall. | 1888 | Go To Quotation |
| vasculose | The principal constituent of the vascular tissue in plants. | 1883 | Go To Quotation |
| Velikovskianism | The (controversial) theories of cosmology and history propounded by Immanuel Velikovsky… | 1978 | Go To Quotation |
| weddellite | A hydrated calcium oxalate, CaC 2 O 4.2H 2 O, which occurs as colourless tetragonal crystals and is common in calculi. | 1942 | Go To Quotation |
| Wordsworthiana | Things relating to or associated with William Wordsworth; writings about Wordsworth or his poetry. | 1888 | Go To Quotation |
| worriless | Free from worry. | 1889 | Go To Quotation |
| Zoque–Mixe | = Mixe–Zoque adj. | 1893 | Go To Quotation |
