Cobalt-60
noun, Chemistry.
1.
a radioactive isotope of cobalt having a mass number of 60 and a half-life of 5.2 years, used chiefly in radiotherapy.
cobalt 60 [(koh-bawlt)]
A radioactive isotope produced when neutrons bombard atoms of the element cobalt.
Note: Cobalt 60 is a common substance used in radiation therapy for cancer.
Read Also:
- Cobaltammine
[koh-bawlt-am-een, -uh-meen] /ˌkoʊ bɔltˈæm in, -əˈmin/ noun 1. any of the various complex derivatives of cobalt containing one or more molecules of ammonia bonded to the cobalt.
- Cobalt-bloom
noun, Mineralogy. 1. (def 1) noun 1. another name for erythrite (sense 1)
- Cobalt-blue
noun 1. a deep blue to a strong greenish-blue color. 2. any of a number of pigments containing an oxide of cobalt. noun 1. Also called Thénard’s blue. any greenish-blue pigment containing cobalt aluminate, usually made by heating cobaltous sulphate, aluminium oxide, and phosphoric acid together 2.
- Cobalt bomb
noun 1. a cobalt-60 device used in radiotherapy 2. a nuclear weapon consisting of a hydrogen bomb encased in cobalt, which releases large quantities of radioactive cobalt-60 into the atmosphere
- Cobalt-green
noun 1. a medium, yellowish-green color. 2. Also called zinc green. a pigment used in painting consisting mainly of oxides of cobalt and zinc, characterized chiefly by its green color, fast drying rate, permanence, and lack of tinting strength.