HyperDic: cobalt_60

English > 1 sense of the expression *cobalt 60*:
NOUN	substance	cobalt 60	a radioactive isotope of cobalt with mass number 60

English > *cobalt 60*: 1 sense > noun 1, substance
Meaning	A radioactive isotope of cobalt with mass number 60; a source of exceptionally intense gamma rays; used in radiation therapy.
Broader	cobalt, Co, atomic number 27	A hard ferromagnetic silver-white bivalent or trivalent metallic element