cesium 137
- the radioactive cesium isotope with mass number 137 and a half-life of 33 years: used for gamma irradiation of certain foods and for radiation therapy.
Also called radiocesium.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cesium 137
Contemporary Examples
Of particular concern: cesium-137 in the pool, at levels Alvarez estimates at 20 million to 50 million curies.
Historical Examples
It was established that strontium-90 and cesium-137, important in fallout on land, enter the marine cycles only in minute amounts.
Atoms, Nature, and ManNeal O. Hines