| abiogenic | Of, relating to, or characterized by abiogenesis (in either sense); not derived… | 1874 | Go To Quotation |
| abiogenically | By means of abiogenesis; in an abiogenic manner; abiotically. | 1874 | Go To Quotation |
| acervuline | Of the form or appearance of little heaps; esp. designating the tests (shells) of some Foraminifera… | 1864 | Go To Quotation |
| acetylene | A colourless, pungent-smelling hydrocarbon gas, which burns with a hot, bright flame… | 1860 | Go To Quotation |
| achiral | Chiefly of a molecule or crystal structure: symmetrical in such a way that it can… | 1921 | Go To Quotation |
| acidophil | Biol. and Med. Of a cell or cellular component: staining readily with an acid dye; = acidophilic adj. 1. Cf. acidophilous adj. 1. | 1895 | Go To Quotation |
| actinozoan | A member of the class Actinozoa (Anthozoa); (now) spec. = anthozoan n. | 1876 | Go To Quotation |
| activator | A thing which or person who activates something; esp. a substance which stimulates or initiates a natural process. | 1904 | Go To Quotation |
| adduct | A compound formed by addition (addition n. 7). Cf. addition product at addition n. 1. | 1933 | Go To Quotation |
| adjugate | = adjoint adj. 3. | 1867 | Go To Quotation |
| aeolotropic | = anisotropic adj. | 1865 | Go To Quotation |
| aerosol | Physical Chem. A system of colloidal particles dispersed in the air or in a gas, such as mist, fog, or smoke. | 1923 | Go To Quotation |
| afocal | Of a lens or other optical system: that transfers an image without bringing it to a focus, i.e.… | 1887 | Go To Quotation |
| air speed | The velocity of moving air or wind. Cf. wind-speed n. at wind n. 1a(a). | 1905 | Go To Quotation |
| alcogel | A gel in which the liquid constituent is an alcohol; a gelatinous suspension dispersed in an alcohol. | 1864 | Go To Quotation |
| alcosol | A sol (sol n.) in which the liquid constituent is an alcohol. Cf. hydrosol n. | 1864 | Go To Quotation |
| Alfvén | a transverse magnetohydrodynamic wave travelling in the direction of the magnetic field in a magnetized plasma. | 1956 | Go To Quotation |
| anthozoan | An animal of the class Anthozoa of marine cnidarians, which includes sea anemones, corals, and sea-pens. | 1877 | Go To Quotation |
| antidiuretic | Inhibiting the production of urine; antidiuretic hormone = vasopressin n. | 1926 | Go To Quotation |
| antiviral | Med. and Biol. Usually of a drug or treatment: active or effective against viruses. | 1929 | Go To Quotation |
| arthropodin | Any of various chemically similar water-soluble proteins found principally in the exoskeletons and cuticles of arthropods. | 1947 | Go To Quotation |
| arthropodous | Of, relating to, or characteristic of the Arthropoda or arthropods; = arthropodan adj. | 1855 | Go To Quotation |
| atomic mass | The average mass of an atom of an element, expressed by comparison to a standard atom… | 1884 | Go To Quotation |
| audiometer | Any of various devices used to test and measure the acuity of hearing, typically… | 1879 | Go To Quotation |
| autocollimator | An instrument that uses the principle of autocollimation, e.g. to measure parallelism or alignment. | 1903 | Go To Quotation |
| autoimmune | Originally: designating serum and red blood cells derived from the same patient, esp. one… | 1908 | Go To Quotation |
| automorphic | Math. Of a function: invariant with respect to a group of linear transformations of a… | 1859 | Go To Quotation |
| autoplast | Embryol. E. R. Lankester's name for: an early embryonic cell or nucleus believed to arise independently rather than by cleavage. | 1874 | Go To Quotation |
| bacteriolysin | A substance formed in the body during an infectious disease which has the property… | 1900 | Go To Quotation |
| ballistite | A smokeless explosive (propellant) invented by Alfred Nobel in 1887, consisting… | 1892 | Go To Quotation |
| bigenous | In the terminology of J. Kőrösi: of or relating to a calculation predicting the fertility… | 1894 | Go To Quotation |
| bioaccumulate | trans. Of an organism: to accumulate (a chemical) in its tissues, rather than… | 1971 | Go To Quotation |
| bioaccumulative | Of a (typically toxic) chemical: having a tendency to bioaccumulate. Also: of or relating to bioaccumulation. | 1971 | Go To Quotation |
| biostatistical | Of or relating to biostatistics. | 1899 | Go To Quotation |
| calciferol | Vitamin D 2. | 1931 | Go To Quotation |
| camerostome | In chelicerate arthropods: a sclerite that overhangs the mouth, usually formed from… | 1881 | Go To Quotation |
| carbon dioxide | A colourless, odourless gas produced by the burning of organic compounds and fossil fuels… | 1867 | Go To Quotation |
| carbonyl | The radical or (in early use) compound CO (carbon monoxide); spec. the divalent group (\… | 1857 | Go To Quotation |
| carboxylic | any organic acid containing one or more carboxyl groups (see sense 2); (also)… | 1868 | Go To Quotation |
| chemisorbed | Of a molecule, substance, etc.: bound to a surface by chemisorption. | 1935 | Go To Quotation |
| chordate | Of or relating to the phylum Chordata. | 1883 | Go To Quotation |
| chromospheric | Of or pertaining to the chromosphere. | 1869 | Go To Quotation |
| clarain | A kind of coal; an ingredient of coal (see quots.). | 1919 | Go To Quotation |
| colour match | An exact or complementary correspondence with regard to colour. | 1862 | Go To Quotation |
| cuneus | A wedge-shaped lobule of the medial surface of the occipital lobe of the brain… | 1869 | Go To Quotation |
| cyclically | In a cyclic or cyclical way; in cycles. | 1882 | Go To Quotation |
| cytotrophoblast | The inner layer of the trophoblast, composed of individual cells. Cf. syncytiotrophoblast n. at syncytium n. Derivatives. | 1905 | Go To Quotation |
| datiscetin | A pale yellow, crystalline flavonoid which is the aglycone of datiscin. | 1854 | Go To Quotation |
| de Broglie | Used attrib., esp. in de Broglie wave, the wave which in wave mechanics is taken as… | 1927 | Go To Quotation |
| decerebrate | Deprived of the cerebrum; having the cerebrum removed or the brain-stem cut; also… | 1897 | Go To Quotation |
| desorb | intr. Of a substance, etc.: to leave the surface upon which it is adsorbed (and pass into). | 1924 | Go To Quotation |
| desorption | The liberation of a substance from the surface upon which it is adsorbed or from the liquid in which it is dissolved. | 1924 | Go To Quotation |
| diazo- | A formative used in chemical nomenclature to denote the substituent = N + = N − (as in diazomethane… | 1859 | Go To Quotation |
| ductal | Of or relating to a duct or ducts of the body (duct n. 6a). | 1855 | Go To Quotation |
| duodenal | The symbol of the root of a duodene n. | 1874 | Go To Quotation |
| duodenate | intr. To modulate by duodenes. | 1874 | Go To Quotation |
| duodene | Name given by A. J. Ellis to a group of twelve notes having certain fixed relations of pitch… | 1874 | Go To Quotation |
| durain | A type of hard, compact coal forming a dull layer in a bituminous seam. | 1919 | Go To Quotation |
| edmondsonite | = taenite n. 2. | 1882 | Go To Quotation |
| eigenfunction | A solution of a differential equation possessing solutions only for special values of a parameter. | 1926 | Go To Quotation |
| electronvolt | A unit of energy equal to the change in energy of an electron when it passes through… | 1925 | Go To Quotation |
| electro-optic | = electro-optical adj. | 1878 | Go To Quotation |
| ergogenic | That aids growth or strength; that increases energy levels. Now chiefly of performance-enhancing drugs. | 1910 | Go To Quotation |
| excretin | (See quots.) | 1854 | Go To Quotation |
| excyst | intr. To undergo excystment; to emerge or be released from a cyst. | 1913 | Go To Quotation |
| excystation | = excystment n. | 1911 | Go To Quotation |
| Feulgen | Used attrib. or occas. in the possessive to denote the methods and materials used by… | 1928 | Go To Quotation |
| fluorescing | That fluoresces, fluorescent. Also: that causes fluorescence. | 1860 | Go To Quotation |
| free radical | Originally: a group or radical (radical n. 5a) in an uncombined state. Now: spec.… | 1870 | Go To Quotation |
| fucoxanthin | A brown carotenoid pigment, C 42 H 58 O 6, occurring in and generally characteristic of the brown algæ. | 1873 | Go To Quotation |
| gas discharge | A flow of electricity through a gas, typically accompanied by emission of light; a body of gas in which this is occurring. | 1884 | Go To Quotation |
| gastrin | A hormone that stimulates gastric secretion. | 1905 | Go To Quotation |
| Green | a theorem relating a line integral around a closed curve to a double integral over… | 1857 | Go To Quotation |
| gyromagnetic | Physics. Of or pertaining to the interdependence of the angular momentum of a… | 1922 | Go To Quotation |
| haptine | In Ehrlich's theory of immunization, a receptor detached from the parent-cell… | 1900 | Go To Quotation |
| Helmholtz | Used attributively with reference to various devices and theories invented by Helmholtz. | 1856 | Go To Quotation |
| heptadecad | A scheme of twenty-four tones formed by the combination of seven decads, in the duodenal system of analysis. | 1874 | Go To Quotation |
| Hermitian | Applied to a matrix in which pairs of elements symmetrically placed with respect to… | 1927 | Go To Quotation |
| heterogenetic | Biol. Of or pertaining to, or characterized by, heterogenesis or heterogeny. | 1872 | Go To Quotation |
| hologram | A pattern produced when light (or other radiation) reflected, diffracted, or transmitted… | 1949 | Go To Quotation |
| hydrogel | A gel or gelatinous precipitate in which the liquid constituent is water. | 1864 | Go To Quotation |
| hydrogenium | Hydrogen regarded as a metal, and, as such, capable of being absorbed or occluded by certain metals. | 1868 | Go To Quotation |
| hydrosol | A sol in which the liquid constituent is water. | 1864 | Go To Quotation |
| hysteresis | A phenomenon observed in some physical systems, by which changes in a… | 1881 | Go To Quotation |
| integrator | One who or that which integrates; spec. an instrument for indicating or registering… | 1876 | Go To Quotation |
| intercalate | An atom or molecule, or a substance, that enters between the layers of the crystal… | 1964 | Go To Quotation |
| interferon | A protein released by an animal cell, usu. in response to the entry of a virus, which… | 1957 | Go To Quotation |
| invaroid | (See quot. 1884.) | 1884 | Go To Quotation |
| ionicity | The ionic character of a bond, molecule, etc.; the degree to which something is ionic. | 1936 | Go To Quotation |
| ionospherist | A person who studies the ionosphere. | 1933 | Go To Quotation |
| isogen | A line or curve in a diagram showing the various combination of the ages of the parents… | 1894 | Go To Quotation |
| Kármán | Kármán (vortex) street, or Kármán street of vortices: a vortex street in which the vortices… | 1928 | Go To Quotation |
| Kellner | attrib. Designating a compound eyepiece used esp. for telescopes, consisting of… | 1865 | Go To Quotation |
| koniscope | An instrument for estimating the concentration of dust in the air by observing the depth… | 1892 | Go To Quotation |
| liquidus | A line in a phase diagram, or a temperature (corresponding to a point on the line), above… | 1901 | Go To Quotation |
| logocyclic | Only in logocyclic curve, a crunodal circular cubic, whose equation is (x 2 + y 2) (2 a − x) = a 2 x. | 1858 | Go To Quotation |
| lutein | A substance of a deep yellow colour found in the yolk of eggs and the ovaries of animals. | 1869 | Go To Quotation |
| lycopin | = lycopene n. | 1903 | Go To Quotation |
| lysozyme | Any of various similar enzymes of relatively low molecular weight which are widely found… | 1922 | Go To Quotation |
| Majorana | the exchange force between two nucleons, in which charge and spin are both exchanged. | 1938 | Go To Quotation |
| mammogenesis | Development of the mammary glands. | 1958 | Go To Quotation |
| mass-spectrographic | Of or relating to a mass spectrograph. | 1935 | Go To Quotation |
| mauveine | A purple aniline dye; = mauve n. 2. Also: the basic substance of which the dye is a salt. | 1863 | Go To Quotation |
| Meckelian | = Meckel's cartilage n. at Meckel n. 2. | 1859 | Go To Quotation |
| Meissner effect | The existence of zero, or very low, magnetic induction in a superconducting material even… | 1935 | Go To Quotation |
| menopausal | Of, relating to, or characteristic of menopause; undergoing menopause. Also in extended… | 1907 | Go To Quotation |
| mesocephalic | Zool. = mesencephalic adj. Now rare. | 1859 | Go To Quotation |
| mesodermic | = mesodermal adj. | 1875 | Go To Quotation |
| mesoduodenum | The mesentery of the duodenum. | 1884 | Go To Quotation |
| mesometrial | Of or relating to the mesometrium. | 1882 | Go To Quotation |
| mesotonic | Designating or relating to the mean tone (see mean tone n.). | 1864 | Go To Quotation |
| mesovarium | The mesentery that supports the ovary. | 1882 | Go To Quotation |
| metachromasia | The property exhibited by certain biological materials and structures of staining… | 1896 | Go To Quotation |
| metamer | Chem. A metameric compound; an isomer, spec. one differing in one or more functional groups. Cf. earlier metameride n. Now rare. | 1865 | Go To Quotation |
| metapterygoid | A bone of the skull of a teleostean fish, located posterior to the pterygoid. | 1859 | Go To Quotation |
| metargon | A supposed gaseous element with the same density as argon but with different… | 1898 | Go To Quotation |
| metastably | In a metastable state or manner. | 1936 | Go To Quotation |
| meteoritic | Of, relating to, or derived from meteorites. | 1865 | Go To Quotation |
| meteorogram | A chart or record produced by a meteorograph. | 1888 | Go To Quotation |
| methane | A colourless, odourless, highly flammable gas, CH 4, the simplest of the alkanes, which… | 1867 | Go To Quotation |
| methene | A divalent —CH 2 — group; = methylene n. disused. | 1867 | Go To Quotation |
| methenyl | A trivalent =CH— group; = methine n. | 1867 | Go To Quotation |
| methylation | Chem. The process of introducing one or more methyl groups into a compound; an instance… | 1863 | Go To Quotation |
| Michelson | = Michelson–Morley experiment n. at Michelson–Morley n. 1; (later also) any… | 1892 | Go To Quotation |
| microanalyser | An instrument used in microanalysis; esp. an instrument that utilizes an electron probe… | 1940 | Go To Quotation |
| microinject | trans. To inject (a substance) into a microscopic object, esp. a single cell. | 1926 | Go To Quotation |
| microlepidopter | = microlepidopteran n. | 1876 | Go To Quotation |
| microphoto | A photomicrograph. Cf. microphotograph n. 2. | 1893 | Go To Quotation |
| microphysical | Of, relating to, or at the level of microphysics. | 1897 | Go To Quotation |
| microphytic | Of or relating to microphytes; of the nature of or characteristic of a microphyte. | 1869 | Go To Quotation |
| microplastic | Designating, relating to, or caused by plastic flow on an internal, microscopic… | 1955 | Go To Quotation |
| microplasticity | Plasticity that occurs at a point below the yield point of a crystalline material; microplastic flow. | 1936 | Go To Quotation |
| microporosity | The state of being microporous. | 1936 | Go To Quotation |
| microrheometer | J. B. Hannay's name for: an apparatus for measuring the rate of flow of liquids through capillary tubes. | 1879 | Go To Quotation |
| micro-scale | A small or microscopic scale; (Chem.) the scale of microanalysis. | 1929 | Go To Quotation |
| mirror-symmetrical | That shows symmetry about a plane. | 1949 | Go To Quotation |
| misorientation | Differing or wrong orientation; the degree of this; an instance of this. | 1933 | Go To Quotation |
| Molteno | Veterinary Med. attrib., esp. in Molteno disease. Designating or relating to… | 1911 | Go To Quotation |
| monoacid | Of a base, alcohol, etc.: having one replaceable hydroxyl group or hydroxide ion in… | 1857 | Go To Quotation |
| monoacidic | = monoacid adj. | 1914 | Go To Quotation |
| monoamine | A compound having a single (primary, secondary, or tertiary) amine group in… | 1859 | Go To Quotation |
| mosaicism | The condition of being (a) mosaic (mosaic n. 3b, mosaic adj. 4). | 1920 | Go To Quotation |
| motoneuron | = motor neuron n. at motor n. adj. Special uses. | 1908 | Go To Quotation |
| motricity | Motor function; the faculty or power of movement by the body or a body part. | 1862 | Go To Quotation |
| mottramite | An orthorhombic basic vanadate of lead, copper, and zinc occurring as green or brownish… | 1876 | Go To Quotation |
| mucify | intr. To undergo mucification. | 1937 | Go To Quotation |
| mucinogen | = mucigen n. | 1884 | Go To Quotation |
| mucinoid | Med. Resembling mucin; mucinous; mucoid. | 1886 | Go To Quotation |
| multicentric | Designating, exhibiting, or relating to origin from, or involvement of, several sites in the body or an organ. | 1911 | Go To Quotation |
| multicored | = multicore adj. | 1946 | Go To Quotation |
| multi-fibre | Composed or consisting of more than one fibre or kind of fibre. | 1937 | Go To Quotation |
| multihole | That has more than one hole. | 1948 | Go To Quotation |
| multimolecular | Composed of or involving more than one molecule. | 1907 | Go To Quotation |
| munjistin | An orange anthraquinone derivative present in munjeet; 1,3-dihydroxyanthraquinone-2-carboxylic acid, C 15 H 8 O 6. | 1863 | Go To Quotation |
| muscle rod | A filament of the A band of a sarcomere; a myosin filament. | 1873 | Go To Quotation |
| myelin | The substance, consisting of a complex mixture of phospholipids and proteins, that… | 1866 | Go To Quotation |
| myoglobin | The protein responsible for oxygen transport and storage in muscle, structurally resembling one of the subunits of haemoglobin. | 1925 | Go To Quotation |
| myometrial | Of or relating to the myometrium. | 1914 | Go To Quotation |
| myopsid | Designating or relating to those cephalopod molluscs in which the anterior chamber of the… | 1924 | Go To Quotation |
| myosin | Originally: the coagulable protein in muscle plasma (consisting largely of what is… | 1866 | Go To Quotation |
| mysid | A shrimp-like crustacean of the family Mysidae or the order Mysidacea, which… | 1876 | Go To Quotation |
| myxoedematous | Of the nature of, relating to, or characteristic of myxoedema; suffering from or affected by myxoedema. | 1886 | Go To Quotation |
| naphthalamine | = naphthylamine n. | 1857 | Go To Quotation |
| naphthalization | The action or process of adding naphtha to coal gas to improve its efficiency as a source of light. | 1861 | Go To Quotation |
| naphthyl | Either of two isomeric monovalent radicals, C 10 H 7 —, derived from naphthalene. Usu. attrib.… | 1856 | Go To Quotation |
| naphthylamine | Either of two isomeric crystalline amines, C 10 H 7 NH 2, derived from naphthalene and used in the manufacture of certain dyes. | 1856 | Go To Quotation |
| narrow-angle | Spanning or involving a narrow angle; esp. designating or relating to a lens with a long focal length and a narrow angle of view. | 1893 | Go To Quotation |
| narrowband | Of or relating to a band of electromagnetic frequencies lying within a narrow range; spec.… | 1948 | Go To Quotation |
| Nassanoff | a gland on the back of the honey bee, between the sixth and seventh segments of the… | 1953 | Go To Quotation |
| nauplial | = naupliar adj. | 1876 | Go To Quotation |
| neglectable | That may be neglected or disregarded; negligible. | 1878 | Go To Quotation |
| neon | Chem. A gaseous chemical element, atomic no. 10, which is one of the noble gases, is… | 1898 | Go To Quotation |
| neopallial | Of or relating to the neopallium. | 1902 | Go To Quotation |
| nephoscope | An instrument used to determine the direction of motion of clouds and their… | 1880 | Go To Quotation |
| nephridiopore | The opening of a nephridium to the exterior of the body. | 1887 | Go To Quotation |
| neuralization | The differentiation of neural tissue from ectoderm. | 1935 | Go To Quotation |
| neuralized | That has differentiated into neural tissue; that has undergone neuralization. | 1934 | Go To Quotation |
| neurocentral | Of or relating to the centrum and neural arch of a vertebra; spec. designating the junction between the two. | 1859 | Go To Quotation |
| neuron | Zool. B. T. Lowne's name for: the neural part of the compound eye of arthropods. Obs. rare. | 1883 | Go To Quotation |
| neuroparalysis | Paralysis resulting from disease of or damage to a nerve or nerves; neurogenic paralysis. | 1859 | Go To Quotation |
| neurophysiology | The physiology of the nervous system; the branch of science dealing with this. | 1859 | Go To Quotation |
| neuropil | Tissue consisting of a dense network of neuronal and glial processes, forming a large part… | 1894 | Go To Quotation |
| neurotropic | Chiefly Pathol. Having an affinity for or attraction to neural tissue; tending to infect… | 1900 | Go To Quotation |
| nickel-iron | Any alloy of nickel and iron, esp. one occurring naturally in a meteorite. Cf. Nife n. | 1867 | Go To Quotation |
| niton | A former name for: the element radon. | 1911 | Go To Quotation |
| nocturning | The act or process of adopting the coloration of a nocturne (nocturne n. 3); an instance of this. | 1899 | Go To Quotation |
| nodally | As regards nodes; at or with nodes; (in extended use) at particular points of concentration. | 1856 | Go To Quotation |
| nonane | Any of a series of saturated hydrocarbons (alkanes) with the formula C 9 H 20; spec. (also n… | 1867 | Go To Quotation |
| nonapeptide | A peptide composed of nine amino-acid residues. | 1937 | Go To Quotation |
| non-avian | That does not relate to birds; (Palaeontol.) designating or relating to members of… | 1907 | Go To Quotation |
| non-commutative | Not obeying the commutative law; (of a binary operation) giving a result that depends on the order of the quantities involved. | 1861 | Go To Quotation |
| non-cyclical | = non-cyclic adj. | 1874 | Go To Quotation |
| non-Hermitian | Of a matrix or quantity: not Hermitian. | 1930 | Go To Quotation |
| non-irritant | Of a substance: not causing irritation of the skin or other tissue. | 1869 | Go To Quotation |
| non-normal | Not normal; (Statistics) not described by or designating a normal distribution (normal adj. 10), not Gaussian. | 1896 | Go To Quotation |
| non-passive | Not passive, active. | 1905 | Go To Quotation |
| non-peptide | Of a molecule: that is not a peptide, spec. that does not contain peptide groups or… | 1942 | Go To Quotation |
| non-planar | Not lying in or forming a single plane. | 1868 | Go To Quotation |
| non-relativistically | In a non-relativistic manner; not according to relativity. | 1931 | Go To Quotation |
| non-segmental | Not composed of or containing segments; not segmental. | 1879 | Go To Quotation |
| non-specificity | Absence of specificity. | 1922 | Go To Quotation |
| non-stoichiometric | Containing or representing atoms of the different elements in numbers that do not bear… | 1943 | Go To Quotation |
| non-stoichiometry | The property of being non-stoichiometric; an instance of this. | 1954 | Go To Quotation |
| non-toxic | Not toxic or poisonous. | 1861 | Go To Quotation |
| non-uniform | Not uniform. | 1856 | Go To Quotation |
| non-valent | Originally: (now rare) not readily forming chemical bonds; inert. Later: having a… | 1896 | Go To Quotation |
| nornarcotine | An organic compound, C 19 H 14 N(OH) 3, obtainable as a white solid by heating… | 1867 | Go To Quotation |
| Nu | = Nusselt number n. Also Nu number. | 1942 | Go To Quotation |
| nulling | That nulls or exactly counterbalances something; that cancels something out. Also: involving such cancellation. | 1950 | Go To Quotation |
| obscurantic | That obscures or conceals; spec. = obscurantist adj. | 1911 | Go To Quotation |
| occluder | Something that occludes or blocks. | 1927 | Go To Quotation |
| octane | Chem. Any of a series of saturated hydrocarbons (alkanes) with the formula C 8 H 18; esp. (also n… | 1867 | Go To Quotation |
| octomeral | Having parts arranged in groups of eight; = octamerous adj. | 1871 | Go To Quotation |
| octonion | A. McAulay's name for: a type of complex number in which the coefficients are quaternions… | 1895 | Go To Quotation |
| octopole | Of or relating to an octupole or octupoles; that is an octupole (see octupole n.). Freq. as octopole moment (cf. moment n. 8c). | 1932 | Go To Quotation |
| off-centred | Not central; positioned away from the centre. Also fig.: unbalanced, eccentric, skewed. | 1955 | Go To Quotation |
| off-diagonal | Designating an element of a square matrix that is not on the principal diagonal (running… | 1932 | Go To Quotation |
| ohmad | A unit of electrical resistance: = ohm n. | 1865 | Go To Quotation |
| ohmic | Of or relating to electrical resistance; spec. obeying Ohm's law, or exhibiting behaviour consistent with it. | 1886 | Go To Quotation |
| -one | In the systematic nomenclature proposed by A. W. Hofmann (quot. 1867): forming the… | 1867 | Go To Quotation |
| -onium | Forming the names of complex cations that contain a more or less electronegative… | 1858 | Go To Quotation |
| Onsager | Physical Chem. Onsager equation n. also Onsager's equation an equation that… | 1929 | Go To Quotation |
| oogonial | Of or relating to an oogonium. | 1896 | Go To Quotation |
| ookinete | A zygote capable of autonomous movement, esp. as a stage in the life cycle of some parasitic protozoa. | 1902 | Go To Quotation |
| oophorectomized | That has been oophorectomized; having had the ovaries removed. | 1934 | Go To Quotation |
| oozooid | In some tunicates: the zooid arising from the fertilized egg, which reproduces asexually by budding. | 1892 | Go To Quotation |
| ophthalmoscope | An instrument used for the visual inspection of the interior of the eye. | 1856 | Go To Quotation |
| opsonic | Of or relating to opsonins; produced by or involving opsonins. | 1903 | Go To Quotation |
| opsonin | A substance (often an antibody) in blood serum which combines with bacteria or other… | 1903 | Go To Quotation |
| organometal | An organometallic compound. | 1859 | Go To Quotation |
| orinasal | Of, relating to, or connecting the mouth and the nose; (Phonetics) pronounced with the… | 1856 | Go To Quotation |
| orometer | An instrument for measuring the heights of mountains. | 1858 | Go To Quotation |
| orthophosphoric | the tribasic acid H 3 PO 4, a crystalline acid obtained e.g. by treating phosphates… | 1864 | Go To Quotation |
| osmicate | trans. To stain or treat with osmic acid or osmium tetroxide. | 1905 | Go To Quotation |
| osmolality | The osmolal concentration of a solution. Cf. osmolarity n. | 1947 | Go To Quotation |
| osteogenic | Histol. and Physiol. Of, relating to, or involved in osteogenesis. | 1860 | Go To Quotation |
| ostial | Of, relating to, or having an ostium or ostia; of the nature of an ostium. | 1885 | Go To Quotation |
| otheoscope | A modification of Crookes's radiometer in which the black or driving surface is… | 1877 | Go To Quotation |
| otoconial | Of the nature of an otoconium; of or relating to otoconia. | 1855 | Go To Quotation |
| otocyst | In certain invertebrates: a small organ containing calcareous particles and functioning… | 1874 | Go To Quotation |
| over-differentiated | Unnecessarily or excessively differentiated; applied (Linguistics) to an element in… | 1927 | Go To Quotation |
| overshoot | In an electrical or other system: the production of a response to change of input… | 1926 | Go To Quotation |
| oviductal | Of, relating to, or of the nature of an oviduct. | 1859 | Go To Quotation |
| ovogenesis | = oogenesis n. | 1857 | Go To Quotation |
| ovulating | Characterized by or undergoing ovulation; (occas.) engaged in laying eggs. | 1926 | Go To Quotation |
| oxalate | trans. To add an oxalate to, to treat with an oxalate, esp. as an anticoagulant. | 1894 | Go To Quotation |
| oxamate | A salt or ester, or the anion, of oxamic acid. | 1856 | Go To Quotation |
| oxidoreduction | A process in which one substance is oxidized and electrons from it reduce another substance. | 1927 | Go To Quotation |
| oxidoreductive | Relating to or involving oxidoreduction. | 1928 | Go To Quotation |
| oximide | = oxime n. Obs. rare. | 1893 | Go To Quotation |
| oxy | Of a molecule, group, etc.: containing one or more oxygen atoms. Cf. oxy- comb._form. | 1863 | Go To Quotation |
| ozonous | Of the nature of or containing ozone. | 1860 | Go To Quotation |
| palaeontographer | An expert in or student of palaeontography. | 1935 | Go To Quotation |
| pancreatized | Treated with pancreatic juice or pancreatin. | 1868 | Go To Quotation |
| panselectionist | A proponent of panselectionism. | 1972 | Go To Quotation |
| para-aminobenzoic | the para -isomer of aminobenzoic acid, (H 2 N)C 6 H 4 (COOH), which is widely distributed… | 1904 | Go To Quotation |
| parabranchial | Situated next to or near the gills. Also: of or relating to a parabranchia (rare). | 1881 | Go To Quotation |
| parachordal | Situated beside the notochord; spec. designating either of a pair of cartilaginous… | 1875 | Go To Quotation |
| parafovea | An annular area of the retina immediately surrounding the fovea. Cf. perifovea n. | 1933 | Go To Quotation |
| parafoveal | Adjacent to or surrounding the fovea of the retina; of or relating to the parafovea. | 1913 | Go To Quotation |
| parametral | Of or relating to a parameter or parameters; parametric. Chiefly in Crystallogr. (see parameter n. 4). | 1865 | Go To Quotation |
| paraplasm | The cytoplasmic matrix of a cell. disused. | 1883 | Go To Quotation |
| parasympatheticomimetic | = parasympathomimetic n. | 1931 | Go To Quotation |
| parasympathomimetic | Producing physiological effects similar to those produced by stimulation of… | 1933 | Go To Quotation |
| parathyroidectomy | Surgical removal of one or more parathyroid glands; an instance of this. | 1899 | Go To Quotation |
| paraxially | In a direction or position alongside or parallel to an axis. | 1903 | Go To Quotation |
| parchmentizing | The action or process of making parchment-like in texture, spec. the conversion of paper into parchment paper. | 1871 | Go To Quotation |
| parichnos | A strand of parenchymatous tissue accompanying a leaf trace, found in fossil lycopods of… | 1892 | Go To Quotation |
| parosteal | Anat. and Zool. Relating to or designating bone that develops adjacent to or outside the periosteum. Obs. | 1869 | Go To Quotation |
| Parseval | attrib. and in the genitive. Designating (any of various forms of) a theorem which… | 1911 | Go To Quotation |
| particle-like | Resembling (that of) a particle, esp. a subatomic particle. | 1929 | Go To Quotation |
| Paschen | a law relating to gas discharges formulated by Paschen in 1889 (Ann. der Physik u. Chem.… | 1903 | Go To Quotation |
| Pasteurella | A genus of bacteria (family Pasterellaceae) comprising small, Gram-negative… | 1895 | Go To Quotation |
| pathogenically | In a pathogenic manner; as regards pathogenic behaviour or properties. | 1890 | Go To Quotation |
| pectization | The (reversible) conversion of a colloid from a sol to a gel state; coagulation, gelatinization. | 1864 | Go To Quotation |
| pectized | That has been pectized; congealed. | 1872 | Go To Quotation |
| Peltier | Used attrib. with reference to an effect whereby heat is given out or absorbed when… | 1856 | Go To Quotation |
| penaeid | A pelagic shrimp of the widespread family Penaeidae (order Decapoda), which… | 1876 | Go To Quotation |
| pen-record | trans. To record (a variable measured quantity) by means of a pen recorder. | 1968 | Go To Quotation |
| pen recording | The action or process of using an instrument that produces a continuous graphical record… | 1923 | Go To Quotation |
| pentacrinoid | Designating a larval stage of a crinoid at which it resembles a crinoid of… | 1862 | Go To Quotation |
| pentadicity | The condition of being pentavalent. | 1876 | Go To Quotation |
| peptization | The conversion of a solid or semi-solid colloid into a sol by chemical means. | 1864 | Go To Quotation |
| peptize | trans. To convert (a solid or semi-solid colloid) into a sol by chemical means. | 1864 | Go To Quotation |
| peracaridan | = peracarid n. | 1908 | Go To Quotation |
| percental | Reckoned by the hundred; calculated as a percentage. | 1894 | Go To Quotation |
| periapse | = periapsis n. | 1974 | Go To Quotation |
| perisomal | = perisomatic adj. | 1876 | Go To Quotation |
| perisome | The integument or body wall of an echinoderm, on which the external calcareous skeleton is developed. | 1863 | Go To Quotation |
| peroxidatic | Characteristic of a peroxidase; peroxidative. | 1936 | Go To Quotation |
| peroxidic | Having the properties of a peroxide; containing or forming part of a peroxide group. | 1933 | Go To Quotation |
| per-rotatory | Passing through a series of terms or objects as if arranged in a circle, so that one… | 1864 | Go To Quotation |
| perturbatively | By means of a perturbation (perturbation n. 4b); using perturbation theory. | 1955 | Go To Quotation |
| pessimal | = pessimum adj. | 1921 | Go To Quotation |
| phacoscope | A device for observing changes in shape of the lens of the eye during accommodation. | 1886 | Go To Quotation |
| phagocyte | trans. = phagocytose v. | 1905 | Go To Quotation |
| phase-shift | trans. To cause a change in the phase of (a waveform, oscillation, cyclic phenomenon… | 1955 | Go To Quotation |
| phellem | The outermost, protective layer of the periderm of plant shoots and roots, typically… | 1877 | Go To Quotation |
| phenylate | A salt of phenol; = phenoxide n. | 1854 | Go To Quotation |
| phenylene | Originally: a supposed hydrocarbon having the formula C 6 H 4. Now: each of three… | 1860 | Go To Quotation |
| phenylenediamine | Each of three isomeric, toxic, crystalline compounds having the formula C 6 H 4 (NH 2) 2… | 1860 | Go To Quotation |
| phlebenterism | The condition of having caeca extending from the alimentary canal, as in gastropod molluscs… | 1856 | Go To Quotation |
| phonoscope | A form of stethoscope in which sound is conveyed independently (by separate tubes) to the two ears. Cf. stethophone n. Obs. | 1859 | Go To Quotation |
| phosphonium | The ion PH 4 +, analogous to ammonium; a substituted form of this. Usu. attrib. or as a formative element in chemical names. | 1859 | Go To Quotation |
| photoabsorption | Absorption of light; spec. absorption of a photon by the electron shell surrounding an atomic nucleus. | 1932 | Go To Quotation |
| photochemistry | The branch of chemistry that deals with the effects on molecules and their reactions… | 1860 | Go To Quotation |
| photochromatic | Of or relating to the action of light in causing a change of colour or a perception… | 1856 | Go To Quotation |
| photoconductance | = photoconductivity n. | 1930 | Go To Quotation |
| photodegraded | Affected by photodegradation. | 1955 | Go To Quotation |
| photodissociate | trans. To dissociate by means of light. Also intr.: to undergo photodissociation. | 1940 | Go To Quotation |
| photodissociation | Dissociation of a molecule or a subatomic particle by the action of light. | 1907 | Go To Quotation |
| photoelectrically | In terms of photoelectric properties; by means of the photoelectric effect. | 1899 | Go To Quotation |
| photoinduced | Induced by the action of light. | 1937 | Go To Quotation |
| photoionize | trans. To ionize by the agency of electromagnetic radiation. | 1937 | Go To Quotation |
| photoisomerism | The property of a compound of having two or more forms which can be converted from one… | 1940 | Go To Quotation |
| photolytic | Produced by or involving photolysis. | 1906 | Go To Quotation |
| photolytically | By means of photolysis. | 1948 | Go To Quotation |
| photomicrogram | = microphotogram n. | 1894 | Go To Quotation |
| photonic | Of, relating to, or of the nature of a photon or photons. | 1929 | Go To Quotation |
| photonuclear | Of or relating to the interaction of a photon with an atomic nucleus. | 1945 | Go To Quotation |
| photoproduction | Particle Physics. The production of one or more particles by the action of an incident photon. | 1935 | Go To Quotation |
| photoreversal | Reversal of a (biological) process by the action of light. | 1951 | Go To Quotation |
| photostimulation | Stimulation by means of light. | 1914 | Go To Quotation |
| photosystem | In Joly's theory of photographic development: a molecular system which has been ionized by the action of light. rare. | 1914 | Go To Quotation |
| phthalate | A salt or ester of phthalic acid. | 1863 | Go To Quotation |
| phycoxanthin | A yellow-brown colouring matter present in various algae, esp. in diatoms and brown algae. | 1873 | Go To Quotation |
| phyllotactical | = phyllotactic adj. | 1888 | Go To Quotation |
| pipette | trans. To draw (off) by means of a pipette; to transfer (into) by means of a pipette. | 1856 | Go To Quotation |
| plagioclasic | = plagioclastic adj. | 1913 | Go To Quotation |
| planetoidal | Of, relating to, or of the nature of a minor planet or asteroid. | 1854 | Go To Quotation |
| plasmoditrophoblast | = syncytiotrophoblast n. at syncytium n. Derivatives. | 1905 | Go To Quotation |
| platode | A flatworm; a platyhelminth. | 1876 | Go To Quotation |
| platymerism | = platymeria n. | 1897 | Go To Quotation |
| pleiotropic | Relating to or of the nature of pleiotropy; displaying pleiotropy. | 1938 | Go To Quotation |
| pleural | Of or relating to a pleuron or pleurite of an arthropod, or to the pleura of a mollusc; (also more generally) lateral, costal. | 1856 | Go To Quotation |
| pneumocyte | A blood cell containing haemoglobin or other oxygen-carrying pigment. disused. rare. | 1872 | Go To Quotation |
| Pockels | attrib. and in the genitive. Used with reference to an electro-optical effect in… | 1938 | Go To Quotation |
| -pointic | Prefixed by an integer n to form adjectives with the sense ‘having, relating to, or… | 1859 | Go To Quotation |
| Poissonian | Of, relating to, or of the nature of a Poisson distribution. | 1894 | Go To Quotation |
| polarimetrically | By means of polarimetry; with a polarimeter. | 1904 | Go To Quotation |
| polhode | A non-plane curve traced on the surface of an ellipsoid by its point of contact with a… | 1866 | Go To Quotation |
| polyacid | Designating a base composed of molecules able to combine with more than one… | 1858 | Go To Quotation |
| polycationic | Of, relating to, or of the nature of a polycation; containing polycations. | 1934 | Go To Quotation |
| polycotyledonary | Zool. (Of a chorion or placenta) having many cotyledons (tufts of villi); (of an… | 1875 | Go To Quotation |
| polycrystalline | Composed of many crystals or crystallites; having a crystalline structure in which there… | 1925 | Go To Quotation |
| polymerization | The action or process of polymerizing; the formation of polymers; an instance of this. Also: the state of being polymeric. | 1870 | Go To Quotation |
| polyphasic | Characterized by or exhibiting several successive peaks of activity. | 1901 | Go To Quotation |
| polytene | Designating or relating to giant chromosomes found in certain meiotic interphase nuclei… | 1935 | Go To Quotation |
| polytenization | The reduplication of genetic material resulting in a polytene chromosome. | 1966 | Go To Quotation |
| porometer | An instrument for measuring the degree of porosity; spec. one for estimating the sizes… | 1911 | Go To Quotation |
| postganglionic | Located distal to a ganglion; spec. of, relating to, or designating autonomic nerve… | 1892 | Go To Quotation |
| postosmicate | trans. To postfix with a solution of osmium tetroxide. | 1933 | Go To Quotation |
| postosmication | Postfixation with a solution of osmium tetroxide. | 1933 | Go To Quotation |
| postsphenoid | The posterior part of the sphenoid bone of the skull, which forms a separate bone in some vertebrates (and in human infants). | 1862 | Go To Quotation |
| potentiometer | A device for measuring potential difference or an electromotive force by balancing it… | 1869 | Go To Quotation |
| preactivated | Activated beforehand; having undergone previous (esp. chemical) activation. | 1937 | Go To Quotation |
| preaxiad | In a preaxial position or direction; preaxially. | 1888 | Go To Quotation |
| precellular | = preganglionic adj. Obs. rare. | 1892 | Go To Quotation |
| precompression | Compression prior to some other treatment or process; (Building) the compressive force… | 1932 | Go To Quotation |
| preganglionic | Located proximal to a ganglion; spec. of, relating to, or designating autonomic nerve… | 1892 | Go To Quotation |
| premoult | Existing or occurring just before a change of plumage in birds, the shedding and… | 1937 | Go To Quotation |
| pressure-treat | trans. To treat by the application of pressure; esp. to impregnate (timber) with… | 1922 | Go To Quotation |
| pressure wave | A wave consisting of a sudden change in pressure propagated through a medium. Also fig. | 1871 | Go To Quotation |
| priapulid | A member of the minor phylum Priapulida, comprising unsegmented wormlike… | 1876 | Go To Quotation |
| promammalian | Relating to or designating a group of (actual or hypothetical) animals representing… | 1878 | Go To Quotation |
| pro-oestrus | The phase of the reproductive cycle in female mammals immediately preceding… | 1906 | Go To Quotation |
| propane | A flammable, gaseous saturated hydrocarbon of the alkane series, occurring in natural gas… | 1867 | Go To Quotation |
| propene | A gaseous hydrocarbon of the alkene series. Also called propylene. | 1867 | Go To Quotation |
| propenyl | Either of two isomeric unsaturated hydrocarbon radicals related to propene. Usu. attrib.… | 1867 | Go To Quotation |
| propyne | A gaseous alkyne used in chemical synthesis and for welding (as a component of Mapp gas). Also called allylene, methylacetylene. | 1867 | Go To Quotation |
| prosomatic | = prosomal adj. | 1882 | Go To Quotation |
| protagon | A fatty substance, occurring chiefly in the white matter of the brain, consisting of a… | 1867 | Go To Quotation |
| proteo- | = proteolytic adj. | 1904 | Go To Quotation |
| protocorm | In clubmosses and orchids, which grow in association with mycorrhiza: a tuberous… | 1891 | Go To Quotation |
| protophyll | In a clubmoss: a primitive leaf-like structure produced on the upper surface of the protocorm or tuber. | 1891 | Go To Quotation |
| Protracheata | With sing. concord: (in Gegenbaur's classification) a class of animals (equivalent to… | 1874 | Go To Quotation |
| proviral | Of or relating to a provirus. | 1961 | Go To Quotation |
| prunase | An enzyme which hydrolyses β-glucosides (notably prunasin), liberating glucose, and… | 1912 | Go To Quotation |
| prunasin | A crystalline, cyanogenic glycoside related to amygdalin, found in a number of trees (notably the bird cherry, Prunus padus). | 1912 | Go To Quotation |
| pseudembryo | A larva of an echinoderm, as the pluteus of a sea urchin or brittlestar, the bipinnaria… | 1863 | Go To Quotation |
| pseudocoelom | = pseudocoel n. 1. | 1883 | Go To Quotation |
| pseudopotential | A potential distribution assumed for the purposes of calculation as an approximation to the actual potential. | 1955 | Go To Quotation |
| pseudoscalar | Relating to or of the nature of a variable quantity that transforms as a scalar under… | 1925 | Go To Quotation |
| pseudosphere | The pseudospherical surface that is generated by rotating a tractrix about its asymptote. | 1884 | Go To Quotation |
| pseudostoma | Histol. An opening between endothelial, mesothelial, or epithelial cells that lacks… | 1874 | Go To Quotation |
| pseudovector | A vector whose sign is unchanged when the signs of all its components are changed. | 1922 | Go To Quotation |
| psophometrically | By means of a psophometer. | 1969 | Go To Quotation |
| psorospermosis | A disease caused by certain sporozoans or other unicellular parasites. Cf. psorosperm n. | 1894 | Go To Quotation |
| pulvinar | Of or relating to a pulvinus. | 1882 | Go To Quotation |
| purpurein | A brown crystalline compound produced by the reaction of purpurin with ammonia. Obs. | 1864 | Go To Quotation |
| push-and-pull | The action or process of pushing and pulling, esp. alternately; an instance of this. Also fig.: a contest, a tug of war. | 1881 | Go To Quotation |
| pycnogonid | Any of various marine chelicerate arthropods constituting the class Pycnogonida… | 1869 | Go To Quotation |
| pygopod | Ornithol. An aquatic bird having the legs placed far back on the body, such as a grebe or a diver. Obs. rare. | 1887 | Go To Quotation |
| pyrosulphuric | a crystalline oxyacid of sulphur which is a powerful protonating agent and a major component of fuming sulphuric acid or oleum. | 1869 | Go To Quotation |
| quadric | An expression or surface of the second degree. | 1854 | Go To Quotation |
| quadripole | Physics. = quadrupole n. 1 2. | 1927 | Go To Quotation |
| quantizable | Capable of being quantized. | 1920 | Go To Quotation |
| quantized | Subject to the restrictions imposed by quantum theory or quantization; occurring as… | 1920 | Go To Quotation |
| quartic | Math. An expression, curve, or surface of the fourth degree. | 1854 | Go To Quotation |
| quartine | = butyne n. | 1867 | Go To Quotation |
| quasiparticle | A thing that has some properties of a particle but is not a particle in the traditional… | 1926 | Go To Quotation |
| Ra | The element radium (radium n. 1a.). | 1900 | Go To Quotation |
| radio- | an instrument for measuring very weak infrared or microwave radiation. | 1887 | Go To Quotation |
| radiogoniometric | Relating to or involving a radiogoniometer; = radiogoniometrical adj. | 1923 | Go To Quotation |
| radiolabel | trans. To label with a radioactive isotope, or a substance containing a radioactive isotope. Cf. label v. 2. | 1956 | Go To Quotation |
| Radiolaria | With pl. and sing. concord. (In form Radiolaria) a group of protozoans… | 1868 | Go To Quotation |
| radio luminosity | = radio brightness n. at radio n. 3. | 1958 | Go To Quotation |
| radiometer | An instrument comprising four lightweight metal vanes, black on one side and white on… | 1875 | Go To Quotation |
| raphid | Of diatoms or their valves: having a raphe (see raphe n. 2c). | 1981 | Go To Quotation |
| rapid-reaction | Chem. Of, relating to, or involving a rapid chemical reaction. | 1932 | Go To Quotation |
| Rayleigh | a type of wave that propagates on the surface of a solid with a speed independent… | 1903 | Go To Quotation |
| Rayleigh–Jeans | Used attrib. with reference to an approximation to Planck's radiation law that is valid… | 1918 | Go To Quotation |
| Rayleigh–Taylor | attrib. Used with reference to the instability of the interface between fluids… | 1958 | Go To Quotation |
| reassociated | Associated again or anew; reunited, recombined. | 1881 | Go To Quotation |
| redward | Situated towards the red end of the visible spectrum; occurring in the direction of the red end. | 1880 | Go To Quotation |
| regelate | trans. To cause (ice) to undergo regelation. Also fig. Obs. | 1857 | Go To Quotation |
| remyelination | The repair or restoration of the myelin sheath of nerve fibres; regeneration of myelinated nerve fibres. | 1948 | Go To Quotation |
| reobservation | Observation for a second or further time; an instance of this. | 1855 | Go To Quotation |
| repolish | An act of repolishing something (lit. and fig.); a second or further polish. | 1886 | Go To Quotation |
| retinylidene | A radical or group derived from retinal and present in rhodopsin as a side chain linked by… | 1962 | Go To Quotation |
| rhabdocoel | A turbellarian flatworm of the order Rhabdocoela, characterized by a straight, unbranched gut. | 1862 | Go To Quotation |
| rheogram | Physics. Originally: a print showing the rate of elongation of cylinders of dough under… | 1933 | Go To Quotation |
| sarcomere | A unit of a myofibril in striated muscle, consisting of a dark band and the nearer half of each adjacent pale band. | 1891 | Go To Quotation |
| Schrödinger | a differential equation whose solution is the Schrödinger function; this equation became… | 1927 | Go To Quotation |
| sclerotin | Any of a class of structural proteins which form the exocuticles of insects and harden… | 1940 | Go To Quotation |
| selenograph | A photograph of a part of the surface of the moon. | 1868 | Go To Quotation |
| self-field | A field intrinsically associated with a charged particle, particle beam, or current… | 1934 | Go To Quotation |
| sipunculid | An animal of the phylum or group Sipuncula (formerly Sipunculida), a peanut worm; = sipunculan n. | 1876 | Go To Quotation |
| solidus | A line or surface in a binary or ternary phase diagram respectively, or… | 1901 | Go To Quotation |
| steroid | Any of a large class of naturally occurring or synthetic organic compounds characterized… | 1936 | Go To Quotation |
| stethophone | A name given independently to two improved forms of stethoscope: see quots. | 1858 | Go To Quotation |
| Strouhal | a dimensionless number used in the study of the vibrations produced in a body by a… | 1949 | Go To Quotation |
| sub-band | A band or layer (esp. a band of frequencies or wavelengths) that forms part of a larger band. Cf. band n. | 1891 | Go To Quotation |
| subfractionation | The action or process of separating a fraction (fraction n. 7) into further fractions by fractionation. | 1926 | Go To Quotation |
| Suess | The name of Hans E. Suess (1909 – 93), Austrian-born U.S. chemist, used attrib.… | 1957 | Go To Quotation |
| superconduct | intr. and (occas.) trans. To conduct (electricity) without any resistance; to exhibit superconductivity. | 1940 | Go To Quotation |
| supercontract | intr. Of a fibre or material: to undergo supercontraction. Also trans.: to cause to undergo supercontraction. | 1938 | Go To Quotation |
| superlattice | An ordered arrangement of certain atoms in a solid solution extending through large parts… | 1925 | Go To Quotation |
| tetraploid | (Made up of somatic cells) containing the diploid chromosome complement twice over. Also as n., a tetraploid organism. | 1914 | Go To Quotation |
| thermomechanical | Physics. Designating or referring to an effect observed in helium II in which the liquid… | 1939 | Go To Quotation |
| time-lapse | An interval of time, esp. between two events; the passage of time; spec. an interval of… | 1864 | Go To Quotation |
| transuranic | Of a chemical element: having a higher atomic number than uranium (i.e. 93 or… | 1935 | Go To Quotation |
| turgometer | A measurer of turgidity. | 1885 | Go To Quotation |
| Umklapp | Used attrib. to designate interactions in a crystal lattice in which their total momentum… | 1951 | Go To Quotation |
| unexacting | (un- prefix 10.) | 1862 | Go To Quotation |
| ureotelic | Of an animal or its metabolism: producing nitrogenous waste chiefly in the form of urea. | 1924 | Go To Quotation |
| uricotelic | Of an animal or its metabolism: producing nitrogenous waste chiefly in the form of uric… | 1924 | Go To Quotation |
| vitrain | A black, highly lustrous, and often brittle type of coal. | 1919 | Go To Quotation |
| voluminal | Of, pertaining to, or possessing volume. | 1872 | Go To Quotation |
| work function | The minimum quantity of energy, characteristic of the material concerned, which is… | 1923 | Go To Quotation |
| Young | Young's modulus: = modulus of elasticity n. at modulus n. 3. | 1865 | Go To Quotation |
