Radioisotope

Radioisotope
A radioactive isotope. (An isotope is an alternate version of a chemical element that has a different atomic mass).
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An isotope that changes to a more stable state by emitting radiation.

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ra·dio·iso·tope .rād-ē-ō-'ī-sə-.tōp n a radioactive isotope compare RADIOELEMENT
ra·dio·iso·to·pic -.ī-sə-'täp-ik, -'tōp-ik adj
ra·dio·iso·to·pi·cal·ly -i-k(ə-)lē adv

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n.
an isotope of an element that emits alpha, beta, or gamma radiation during its decay into another element. Artificial radioisotopes, produced by bombarding elements with beams of neutrons, are widely used in medicine as tracer and as sources of radiation for the different techniques of radiotherapy.

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ra·dio·iso·tope (ra″de-o-iґsə-tōp) an isotope which is radioactive; one having an unstable nucleus and emitting characteristic radiation during its decay to a stable form. Radioisotopes have important diagnostic and therapeutic uses in clinical medicine and research. See also radiopharmaceutical and radiotherapy.

Medical dictionary. 2011.

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Look at other dictionaries:

  • radioisotope — radioisotope. См. радиоактивный изотоп. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • radioisotope — radioisotope. = radioactive isotope (см.). (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • radioisotope — (n.) 1946, from radio , comb. form of RADIATION (Cf. radiation), + ISOTOPE (Cf. isotope) …   Etymology dictionary

  • radioisotope — ► NOUN ▪ a radioactive isotope. DERIVATIVES radioisotopic adjective …   English terms dictionary

  • radioisotope — [rā΄dē ō ī′sə tōp΄] n. a naturally occurring or artificially created radioactive isotope of a chemical element: used in medical therapy, biological research, etc …   English World dictionary

  • Radioisotope — Les radioisotopes, ou radionucléides, contraction de radioactivité et d’isotope ou de nucléide, sont des atomes dont le noyau est instable et est donc radioactif. Un radioélément est un élément chimique dont tous les isotopes connus sont des… …   Wikipédia en Français

  • radioisotope — radio isotope ou radioisotope [ʀadjoizɔtɔp] n. m. ÉTYM. 1947; de 1. radio , et isotope. ❖ ♦ Isotope radioactif (d un élément quelconque), par oppos. aux isotopes stables. ⇒ Radio élément. || Radio isotope du carbone …   Encyclopédie Universelle

  • Radioisotope — Radio|isotope,   natürliche oder künstliche radioaktive Isotope eines bestimmten chemischen Elements. Radioisotope sind Radionuklide gleicher Kernladungszahl, aber unterschiedlicher Massenzahl; z. B. das Wasserstoffisotop Tritium (3H) …   Universal-Lexikon

  • radioisotope — radioizotopas statusas T sritis fizika atitikmenys: angl. radioactive isotope; radioisotope vok. radioaktives Isotop, n; Radioisotop, n rus. радиоактивный изотоп, m; радиоизотоп, m pranc. isotope radioactif, m; radio isotope, m …   Fizikos terminų žodynas

  • radioisotope — radioaktyvusis izotopas statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Radioaktyviojo cheminio elemento izotopas. atitikmenys: angl. radioactive isotope; radioisotope rus. радиоизотоп …   Apsaugos nuo naikinimo priemonių enciklopedinis žodynas

  • Radioisotope heater unit — Radioisotope heater units are small devices that provide heat through radioactive decay. They are similar to tiny radioisotope thermoelectric generators (RTG), and normally provide about one watt of heat each, derived from the decay of a few… …   Wikipedia

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