bioassay

[noun bahy-oh-uh-sey, -as-ey; verb bahy-oh-uh-sey]

noun

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.

verb (used with object), bi·o·as·sayed, bi·o·as·say·ing.

to subject to a bioassay.

Origin of bioassay

First recorded in 1910–15; bio(logical) + assay

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for bioassay

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)

(tr) to subject to a bioassay

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

bioassay in Medicine

bioassay

[bī′ō-ăs′ā′, -ă-sā′]

n.

Determination of the strength or biological activity of a substance, such as a drug or hormone, by comparing its effects with those of a standard preparation on a test organism.

A test used to determine such strength or activity.

v.

To cause to undergo a bioassay.biologic assay

bioassay in Science

bioassay

[bī′ō-ăs′ā′, -ă-sā′]

Determination of the relative purity of a substance, such as a drug or hormone, by comparing its effects with those of a standard preparation on a culture of living cells or a test organism.

A test used to determine such purity.