60 : Idioms & Phrases
60 minutes
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noun a period of time equal to 1/24th of a day
hr; hour.
- the job will take more than an hour
WordNet
atomic number 60
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noun a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
Nd; neodymium.
WordNet
cobalt 60
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noun a radioactive isotope of cobalt with mass number 60; a source of exceptionally intense gamma rays; used in radiation therapy