cobalt-60

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cobalt-60

[′kō‚bȯlt ′siks·tē]
(nuclear physics)
A radioisotope of cobalt, symbol 60Co, having a mass number of 60; emits gamma rays and has many medical and industrial uses; the most commonly used isotope for encapsulated radiation sources.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.