Strontium-90 Strontium-90 A radioactive isotope of strontium produced by certain nuclear reactions, and constituting one of the prominent harmful components of radioactive fallout from nuclear explosions; also called {radiostrontium}. It has a half-life of 28 years. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • radiostrontium — ● radiostrontium nom masculin Isotope radioactif du strontium. (Les deux isotopes de numéros atomiques 89 et 90 sont utilisés comme traceurs radioactifs. Le strontium 90, produit dans les réacteurs et les explosions nucléaires, est très dangereux …   Encyclopédie Universelle

  • radiostrontium — [rā΄dē ō strän′shē əm, rā΄dē ō strän′tē əm] n. radioactive strontium, esp. strontium 90 …   English World dictionary

  • radiostrontium — /ray dee oh stron shee euhm, sheuhm, tee euhm/, n. Chem. See strontium 90. [1940 45; RADIO + STRONTIUM] * * * …   Universalium

  • radiostrontium — noun any radioactive isotope of strontium, especially Syn: strontium 90 …   Wiktionary

  • radiostrontium — A radioactive isotope of strontium; e.g., 90Sr. * * * ra·dio·stron·tium .rād ē ō strän ch(ē )əm, stränt ē əm n radioactive strontium esp STRONTIUM 90 * * * ra·dio·stron·ti·um (ra″de o stronґshe əm) a radioactive isotope of strontium,… …   Medical dictionary

  • radiostrontium — n. radioactive isotope of strontium (Chemistry) …   English contemporary dictionary

  • radiostrontium — ra·dio·strontium …   English syllables

  • radiostrontium — |rādē(ˌ)ō+ noun Etymology: New Latin, from radio + strontium : radioactive strontium; especially : strontium 90 * * * /ray dee oh stron shee euhm, sheuhm, tee euhm/, n. Chem. See strontium 90. [194 …   Useful english dictionary

  • Alexander Catsch — (Katsch) (1913 ndash; 1976 in Karlsruhe) was a German Russian medical doctor and radiation biologist. Up to the end of World War II, he worked in Nikolaj Vladimirovich Timefeev Resovskij’s Abteilung für Experimentelle Genetik at the Kaiser… …   Wikipedia

  • strontium 90 — noun a radioactive isotope of strontium (with the mass number 90) that is present in the fallout from nuclear explosions; can be assimilated like calcium into bones • Hypernyms: ↑strontium, ↑Sr, ↑atomic number 38 * * * noun : a heavy radioactive… …   Useful english dictionary

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