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Meaning of bioassay

bi•o•as•say

Pronunciation: (n.bī"ō-u-sā', -as'āv.bī"ō-u-sā'), [key]
— n., v., -sayed, -say•ing.
—n.
  1. determination of the biological activity or potency of a substance, as a vitamin or hormone, by testing its effect on the growth of an organism.
—v.t.
  1. to subject to a bioassay.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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