noun plural but singular in construction Date: 1909 physics dealing with thermionic phenomena

New Collegiate Dictionary. 2001.

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  • thermionics — [thʉr΄mī än′iks, thʉr΄mēän′iks] n. the study and science of thermionic activity …   English World dictionary

  • Thermionics — In physics, thermionics is a branch of electronics dealing with the emission of electrons from matter under the influence of heat. See also *Thermionic emission *Thermionic tube …   Wikipedia

  • thermionics — /therrm uy on iks, therr mee /, n. (used with a sing. v.) the branch of physics that deals with thermionic phenomena. [1925 30; see THERMIONIC, ICS] * * * …   Universalium

  • thermionics — ther·mi·on·ics (thur″me onґiks) the science of the phenomena exhibited by thermions …   Medical dictionary

  • thermionics — noun (U) technical the part of science that deals with the flow of electrons from heated metal …   Longman dictionary of contemporary English

  • thermionics — therm·ion·ics …   English syllables

  • thermionics — therm•i•on•ics [[t]ˌθɜrm aɪˈɒn ɪks, ˌθɜr mi [/t]] n. (used with a sing. v.) phs the branch of physics dealing with thermionic phenomena • Etymology: 1925–30 …   From formal English to slang

  • thermionics — /θɜmiˈɒnɪks/ (say thermee oniks) noun the science of thermionic phenomena, especially the design and study of thermionic valves …   Australian English dictionary

  • thermionics — (treated as sing.) the branch of science and technology concerned with thermionic emission …   Useful english dictionary

  • Radioisotope thermoelectric generator — A radioisotope thermoelectric generator (RTG, RITEG) is an electrical generator which obtains its power from radioactive decay. In such a device, the heat released by the decay of a suitable radioactive material is converted into electricity by… …   Wikipedia

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