| assay | (noun) a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc. | - |
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| (noun) an appraisal of the state of affairs | Synonyms: check |
| (noun) a written report of the results of an analysis of the composition of some substance | - |
| (noun) a substance that is undergoing an analysis of its components | - |
| (verb) analyze (chemical substances) | - |
| (verb) make an effort or attempt | Synonyms: attempt, essay, seek, try |
| bioassay | (noun) appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard | Synonyms: bio-assay |
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| (verb) subject to a bio-assay | - |
| essay | (noun) a tentative attempt | - |
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| (noun) an analytic or interpretive literary composition | - |
| (verb) make an effort or attempt | Synonyms: assay, attempt, seek, try |
| (verb) put to the test, as for its quality, or give experimental use to | Synonyms: examine, prove, test, try, try out |
| immunoassay | (noun) identification of a substance (especially a protein) by its action as an antigen | Synonyms: immunochemical assay |
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| radioimmunoassay | (noun) immunoassay of a substance that has been radioactively labeled | - |
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