Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Determination of the strength or biological activity of a substance, such as a drug, by comparing its effects with those of a standard preparation on a test organism.
  • n. A test used to determine such strength or activity.
  • transitive v. To cause to undergo a bioassay.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the analysis of the biological activity of a substance, with reference to a standard preparation, using a culture of living cells, or a living creature

from the GNU version of the Collaborative International Dictionary of English

  • n. appraisal of the biological activity of a substance by testing its effect on an organism.
  • v. to subject to a bio-assay.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard
  • v. subject to a bio-assay
  • n. appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard

Etymologies

bio- +‎ assay (Wiktionary)

Examples

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