Dictionary
cobalt 60
noun
Definition of COBALT 60
: a heavy radioactive isotope of cobalt of the mass number 60 produced in nuclear reactors and used as a source of gamma rays (as for radiotherapy)
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First Known Use of COBALT 60
1946
Medical Dictionary
cobalt 60
noun \-ˈsik-stē\
Medical Definition of COBALT 60
: a heavy radioactive isotope of cobalt having the mass number 60 produced in nuclear reactors and used as a source of gamma rays especially in place of radium (as in the treatment of cancer and in radiography)—called also radiocobalt
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