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.

Nearby words

  1. bioactive,
  2. bioactivity,
  3. bioaeration,
  4. bioaeronautics,
  5. bioarchaeology,
  6. bioastronautics,
  7. bioautography,
  8. bioavailability,
  9. biobank,
  10. biobehavioral

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

Medicine definitions for bioassay

bioassay

[bī′ō-ăsā′, -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

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for bioassay

bioassay

[bī′ō-ăsā′, -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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.