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The Collaborative International Dictionary
bioassay

bioassay \bioassay\ n. appraisal of the biological activity of a substance by testing its effect on an organism.

bioassay

bioassay \bioassay\ v. 1 to subject to a bio-assay.

Syn: bio-assay.

Wiktionary
bioassay

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

WordNet
bioassay
  1. n. appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard

  2. v. subject to a bio-assay

Wikipedia
Bioassay

Bioassay (commonly used shorthand for biological assay or assessment), or biological standardization is a type of scientific experiment. A bioassay involves the use of live animal or plant (in vivo) or tissue or cell (in vitro) to determine the biological activity of a substance, such as a hormone or drug. Bioassays are typically conducted to measure the effects of a substance on a living organism and are essential in the development of new drugs and in monitoring environmental pollutants. Both are procedures by which the potency or the nature of a substance is estimated by studying its effects on living matter. A bioassay can also be used to determine the concentration of a particular constitution of a mixture that may cause harmful effects on organisms or the environment.

Usage examples of "bioassay".

Do bioassays of body fluids, which meant urinating into a special bag.

Bionetics Laboratories, a subsidiary of Litton Industries, under contract to the National Cancer Institute, on the effects of 123 chemical compounds in bioassays on 20,000 mice covering periods of up to eighty-four weeks.