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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.
to subject to a bioassay.
noun (ˌbaɪəʊəˈseɪ; -ˈæseɪ)
a method of determining the concentration, activity, or effect of a change to substance by testing its effect on a living organism and comparing this with the activity of an agreed standard
verb (ˌbaɪəʊəˈseɪ)
(transitive) to subject to a bioassay

v. bi·o·as·sayed, bi·o·as·say·ing, bi·o·as·says
To cause to undergo a bioassay. Also called biologic assay.
(bī’ō-ās’ā’, -ā-sā’)


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