| anti-coincidence | Applied attrib. to a device, or to a system employing a device, which rejects… | 1939 | Go To Quotation |
| autoradiography | The production or use of autoradiographs. | 1941 | Go To Quotation |
| back scattering | The scattering of radiation in a reverse direction from an irradiated substance. | 1940 | Go To Quotation |
| Barkhausen | Barkhausen effect n. the name given to the series of sudden changes in the magnetization… | 1924 | Go To Quotation |
| berkelium | A metallic radioactive transuranic element not occurring in nature but made artificially; symbol Bk; atomic number 97. | 1950 | Go To Quotation |
| cathodo- | used as combining form of cathode n. | 1909 | Go To Quotation |
| Cerenkov | Used attrib. in Cerenkov effect, Cerenkov radiation, etc. (see quots.). | 1940 | Go To Quotation |
| Compton | Used attrib. or in the possessive of certain phenomena in physics. | 1923 | Go To Quotation |
| cyclotron | An apparatus for accelerating charged atomic particles by subjecting them repeatedly to… | 1935 | Go To Quotation |
| Einstein–Bose | A designation used as an alternative to Bose-Einstein n., as Einstein–Bose particle, Einstein–Bose statistics, etc. | 1931 | Go To Quotation |
| einsteinium | An artifically produced radioactive element. Symbol Es. Atomic number 99. Atomic mass of isotope 253 (1967) 253·0847. | 1955 | Go To Quotation |
| fermium | An artificially produced radioactive element, atomic number 100. Symbol Fm. | 1955 | Go To Quotation |
| ferroelectric | Of or pertaining to ferroelectricity. | 1935 | Go To Quotation |
| ferromagnet | A ferromagnetic body or substance. | 1941 | Go To Quotation |
| field-theoretic | = field-theoretical adj. | 1938 | Go To Quotation |
| helicity | Physics. The projection of the spin angular momentum of an elementary particle on the direction of its linear momentum. | 1958 | Go To Quotation |
| homonuclear | Physics and Chem. Of a molecule: composed of atoms whose nuclei are alike, i.e. atoms of… | 1930 | Go To Quotation |
| hypercharge | A property of hadrons that is conserved in strong interactions and is represented by… | 1956 | Go To Quotation |
| inelastically | In a manner characteristic of inelastic bodies; with a reduction in the total kinetic energy. | 1938 | Go To Quotation |
| inhour | A unit for expressing the reactivity of a nuclear reactor, being the reactivity of one… | 1947 | Go To Quotation |
| interferometer | Any instrument in which the interference of waves (e.g. of light) from a common source… | 1897 | Go To Quotation |
| Kikuchi | each of a series of lines in electron diffraction patterns which are attributed to… | 1934 | Go To Quotation |
| Knudsen | an instrument for measuring the absolute pressure of a rarefied gas by means of the… | 1918 | Go To Quotation |
| Lamb | a displacement of energy levels in hydrogen and hydrogen-like atoms such that those with… | 1948 | Go To Quotation |
| Lamb shift | A displacement of energy levels in hydrogen and hydrogen-like atoms such that those with… | 1948 | Go To Quotation |
| Lorentzian | Of, pertaining to, or characteristic of Lorentz (see Lorentz n.), his theories, or… | 1958 | Go To Quotation |
| magnetogasdynamics | The electromagnetic properties and motion of compressible electrically conducting… | 1957 | Go To Quotation |
| magnetoresistance | Dependence of the electrical resistance of a body on an external magnetic field. | 1930 | Go To Quotation |
| mass spectrometer | An apparatus used to analyse substances by the separation of ions in a sample according… | 1932 | Go To Quotation |
| mass-spectrometric | That uses a mass spectrometer or mass spectrometry. | 1946 | Go To Quotation |
| mass spectrometry | The use of a mass spectrometer to analyse or identify substances. | 1948 | Go To Quotation |
| mendelevium | A radioactive metallic chemical element of the actinide series, atomic number 101… | 1955 | Go To Quotation |
| molal | = molar adj. 1. Cf. molecular adj. 1c. | 1908 | Go To Quotation |
| Morse | attrib. and in the genitive, esp. in Morse equation, Morse potential. Designating or… | 1929 | Go To Quotation |
| motionally | As regards motion; by means of motion. | 1953 | Go To Quotation |
| mu-mesonic | = muonic adj. Cf. mu-mesic adj. | 1954 | Go To Quotation |
| muonium | A short-lived, electrically neutral system analogous to an atom, consisting of a positive muon bound to an electron. | 1957 | Go To Quotation |
| Mv | The element mendelevium. | 1955 | Go To Quotation |
| No | The element nobelium. | 1957 | Go To Quotation |
| nobelium | An artificially produced transuranic element, atomic no. 102, whose longest-lived isotope… | 1957 | Go To Quotation |
| NPN | Designating a semiconductor device in which a p -type region is sandwiched between two n -type regions. | 1951 | Go To Quotation |
| nucleonium | A particle consisting of a nucleon and the corresponding antinucleon bound to each other. Usu. without article, and attrib. | 1956 | Go To Quotation |
| omegatron | A mass spectrometer that employs the principle of the cyclotron to identify and measure gases at very low pressures. | 1949 | Go To Quotation |
| photoactive | Involving or capable of a chemical or physical change in response to illumination. | 1908 | Go To Quotation |
| photoactivity | The degree to which a substance or system is photoactive. | 1915 | Go To Quotation |
| photoelectronic | Physics and Chem. Of or relating to a photoelectron, or the interaction of light with electrons. | 1922 | Go To Quotation |
| photoemission | The emission of electrons from a surface under the action of incident light. | 1916 | Go To Quotation |
| photomixer | A device that acts for light waves and terahertz waves as a mixer (mixer n. 5c) does for electrical signals. | 1955 | Go To Quotation |
| photoproduced | Produced by the action of light or of a photon. | 1953 | Go To Quotation |
| piezoresistance | Change in the electrical resistance of a solid when subjected to mechanical stress. Cf. piezoresistivity n. | 1954 | Go To Quotation |
| piezoresistive | Of, relating to, or utilizing piezoresistance or piezoresistivity. | 1935 | Go To Quotation |
| pi-mesic | = pionic adj. | 1952 | Go To Quotation |
| pi-mesonic | = pionic adj. | 1953 | Go To Quotation |
| plasmoid | A coherent mass of plasma (ionized gas). | 1956 | Go To Quotation |
| polariton | A quasiparticle in an ionic crystal consisting of a photon strongly coupled to a quasiparticle such as a phonon or an exciton. | 1958 | Go To Quotation |
| poloidal | Designating a magnetic field of the form associated with a toroidal electric field, in… | 1946 | Go To Quotation |
| polycrystal | = polycrystalline adj. | 1925 | Go To Quotation |
| positronium | A short-lived neutral system, analogous to an atom, consisting of a positron and a negative electron bound together. | 1945 | Go To Quotation |
| pre-cooler | A device for pre-cooling something. | 1904 | Go To Quotation |
| quadrupler | A device that makes a voltage or current four times as great. Freq. attrib. | 1938 | Go To Quotation |
| Racah | Used attrib. with reference to Racah's work in quantum mechanics; spec. Racah coefficient n.… | 1952 | Go To Quotation |
| redshifted | Characterized by a displacement towards longer wavelengths; having undergone a redshift. | 1948 | Go To Quotation |
| renormalizable | That permits renormalization; capable of being renormalized. | 1951 | Go To Quotation |
| Richardson equation | An equation for the maximum current density of electrons emitted from a hot metal surface… | 1913 | Go To Quotation |
| Schottky | the increase in thermionic emission of a solid surface resulting from the lowering of… | 1925 | Go To Quotation |
| spinor | Any quantity existing in a space and having the property that rotation through 360°… | 1931 | Go To Quotation |
| superfluidity | The property of flowing without viscosity or friction which, with other exceptional… | 1938 | Go To Quotation |
| superradiant | Relating to, involving, or characterized by superradiance. | 1954 | Go To Quotation |
| synchrotron | An accelerator in which electrons or protons gain energy from an alternating electric field… | 1945 | Go To Quotation |
| tachyon | A hypothetical particle that travels faster than light and has imaginary mass. | 1967 | Go To Quotation |
| thermistor | A small piece of semi-conducting material the resistance of which falls… | 1940 | Go To Quotation |
| thermonuclear | Derived from, utilizing, or being a nuclear reaction that occurs only at very… | 1938 | Go To Quotation |
| transplutonium | Of a chemical element: having a higher atomic number than plutonium (i.e. 95 or over). | 1955 | Go To Quotation |
| triton | A sub-atomic particle composed of one proton and two neutrons, the nucleus of the tritium atom. | 1942 | Go To Quotation |
| vibronic | Of or pertaining to electronic energy levels or transitions associated with the vibration of the constituent atoms of a molecule. | 1941 | Go To Quotation |
| wave mechanics | A form of non-relativistic quantum mechanics introduced by E. Schrödinger in which… | 1926 | Go To Quotation |
| ylem | In the big-bang theory, the primordial matter of the universe, orig. conceived as… | 1948 | Go To Quotation |
| yrast | Pertaining to or designating any nuclear energy level that is the lowest for some value… | 1967 | Go To Quotation |
