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strontium 90
strontium 90
n. a harmful radioactive isotope of strontium, produced in certain nuclear reactions and present in their fallout. strontium 90 A radioactive isotope of strontium having a mass number of 90 and a half-life of 28 years. Strontium 90 is the most dangerous component of the fallout from nuclear explosions because it can be absorbed by the body. It is also used in medicine to treat cancer.Thesaurus| Noun | 1. | strontium 90 - 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 bonesatomic number 38, Sr, strontium - a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite |
EncyclopediaSeestrontiumstrontium 90
stron·ti·um 90 (90Sr), (stron'shē-ŭm), A radioactive strontium isotope; a β emitter with a half-life of 29.1 years; a major component (about 5%) of the uranium fission products; it is incorporated into bone tissue where turnover is slow; used to treat some ocular conditions (for example, pterygia).strontium 90 A radioactive isotope of 28 years half-life that is produced in large quantities in nuclear fission reactions. It accumulates in the bones and may cause leukaemia and bone tumours.strontium 90
Related to strontium 90: cesium 137, strontium 89Words related to strontium 90noun a radioactive isotope of strontium (with the mass number 90) that is present in the fallout from nuclear explosionsRelated Words- atomic number 38
- Sr
- strontium
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