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bioassay

[n. bahy-oh-uh-sey, -as-ey; v. bahy-oh-uh-sey] /n. ˌbaɪ oʊ əˈseɪ, -ˈæs eɪ; v. ˌbaɪ oʊ əˈseɪ/
noun
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.
verb (used with object), bioassayed, bioassaying.
2.
to subject to a bioassay.
Origin
1910-1915
1910-15; bio(logical) + assay
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for bioassay

bioassay

noun (ˌbaɪəʊəˈseɪ; -ˈæseɪ)
1.
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)
2.
(transitive) 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
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bioassay in Medicine

bioassay bi·o·as·say (bī'ō-ās'ā', -ā-sā')
n.

  1. 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.

  2. A test used to determine such strength or activity.

v. bi·o·as·sayed, bi·o·as·say·ing, bi·o·as·says
To cause to undergo a bioassay. Also called biologic assay.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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bioassay in Science
bioassay
  (bī'ō-ās'ā', -ā-sā')   
  1. 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.

  2. A test used to determine such purity.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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