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bioassay

[ noun bahy-oh-uh-sey, -as-ey; verb bahy-oh-uh-sey ]
/ noun 藢ba瑟 o蕣 蓹藞se瑟, -藞忙s e瑟; verb 藢ba瑟 o蕣 蓹藞se瑟 /
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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路o路as路sayed, bi路o路as路say路ing.
to subject to a bioassay.
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Origin of bioassay

First recorded in 1910鈥15; bio(logical) + assay
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, 漏 Random House, Inc. 2022

British Dictionary definitions for bioassay

bioassay

noun (藢ba瑟蓹蕣蓹藞se瑟, -藞忙se瑟)
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 (藢ba瑟蓹蕣蓹藞se瑟)
(tr) to subject to a bioassay
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for bioassay

bioassay
[ b墨鈥才-膬s膩鈥, -膬-s膩 ]

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.
The American Heritage庐 Science Dictionary Copyright 漏 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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