Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun cobalt_60

1 sense of cobalt 60

Sense 1
cobalt 60 -- (a radioactive isotope of cobalt with mass number 60; a source of exceptionally intense gamma rays; used in radiation therapy)
       => cobalt, Co, atomic number 27 -- (a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition)