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Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
bio-assay is a noun meaning "appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard". It carries one recorded sense.
appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard
Definitions, synonyms and semantic relations for bio-assay come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.