radioactive
adjective Etymology: International Scientific Vocabulary Date: 1898 of, caused by, or exhibiting radioactivity • radioactively adverb

New Collegiate Dictionary. 2001.

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  • Radioactive — «Radioactive» Сингл Kings of Leon из ал …   Википедия

  • Radioactive — ist ein Rockprojekt von schwedischen und US amerikanischen Künstlern. Gegründet wurde Radioactive 2000 vom schwedischen Gitarristen Tommy Denander. Bereits Anfang der Neunziger Jahre hatte er mit den Mitgliedern der amerikanischen Rockband Toto… …   Deutsch Wikipedia

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  • radioactive — a di*o*ac tive (r[=a] d[i^]*[ o]*[a^]k t[i^]v), a. [Radio + active.] 1. (Physics) Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. [obsolete] [Webster 1913 Suppl.] 2. (Physics) of,… …   The Collaborative International Dictionary of English

  • radioactive — (adj.) 1898, from Fr. radio actif, coined by Pierre and Marie Curie from radio , comb. form of L. radius (see RADIATION (Cf. radiation)) + actif active (see ACTIVE (Cf. active)) …   Etymology dictionary

  • radioactive — ► ADJECTIVE ▪ emitting or relating to the emission of ionizing radiation or particles. DERIVATIVES radioactively adverb …   English terms dictionary

  • radioactive — [rā΄dē ō ak′tiv] adj. [ RADIO + ACTIVE] giving off, or capable of giving off, radiant energy in the form of particles or rays, as alpha, beta, and gamma rays, by the spontaneous disintegration of atomic nuclei: said of certain elements, as… …   English World dictionary

  • radioactive — ra|di|o|ac|tive [ˌreıdiəuˈæktıv US diou ] adj a radioactive substance is dangerous because it contains ↑radiation (=a form of energy that can harm living things) ▪ the problem of how to dispose of radioactive waste ▪ a consignment of highly… …   Dictionary of contemporary English

  • Radioactive — Emitting energy waves due to decaying atomic nuclei. Radioactive substances are used in medicine as tracers for diagnosis, and in treatment to kill cancerous cells. * * * Possessing radioactivity. SYN: radio (2). * * * ra·dio·ac·tive .rād ē ō ak… …   Medical dictionary

  • radioactive — ● radioactif, radioactive adjectif Doué de radioactivité. ● radioactif, radioactive (synonymes) adjectif Doué de radioactivité. Synonymes : actif …   Encyclopédie Universelle

  • radioactive — [[t]re͟ɪdioʊæ̱ktɪv[/t]] ADJ GRADED Something that is radioactive contains a substance that produces energy in the form of powerful and harmful rays. The government has been storing radioactive waste at Fernald for 50 years. Derived words:… …   English dictionary

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