a nuclide produced either directly by nuclear fission or by the radioactive decay of such a nuclide
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Medicine definitions for fission product
A usually radioactive isotope produced as a result of the fission of a massive atom such as U235.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.