bioassay
noun
bio·as·say
ˌbī-(ˌ)ō-ˈa-ˌsā,
-a-ˈsā
: determination of the relative strength of a substance (such as a drug) by comparing its effect on a test organism with that of a standard preparation
Examples of bioassay in a Sentence
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Chemical safety and toxicity testing Historically, researchers have tested the safety and toxicity of chemicals by using biological assays, or bioassays.
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Brad Reisfeld, The Conversation, 12 Mar. 2025
The key premise in using bioassays in animals is that researchers can use the results to help understand the chemical’s safety for people.
—Brad Reisfeld, The Conversation, 12 Mar. 2025
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Brad Reisfeld, The Conversation, 12 Mar. 2025
The key premise in using bioassays in animals is that researchers can use the results to help understand the chemical’s safety for people.
—Brad Reisfeld, The Conversation, 12 Mar. 2025
Cite this Entry
“Bioassay.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bioassay. Accessed 18 Jul. 2025.
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bioassay
noun
bio·as·say
-ˈas-ˌā, -a-ˈsā 
: determination of the relative strength of a substance (as a drug) by comparing its effect on a test organism with that of a standard preparation
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