| 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 | - |
| assayer | (noun) an analyst who assays (performs chemical tests on) metals | - |
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| 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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| calisaya | (noun) Peruvian shrub or small tree having large glossy leaves and cymes of fragrant yellow to green or red flowers; cultivated for its medicinal bark | Synonyms: Cinchona calisaya, Cinchona ledgeriana, Cinchona officinalis |
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| essay | (noun) a tentative attempt | - |
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| (noun) an analytic or interpretive literary composition | - |
| essayer | (noun) one who tries | Synonyms: attempter, trier |
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| essayist | (noun) a writer of literary works | Synonyms: litterateur |
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| hearsay | (noun) gossip (usually a mixture of truth and untruth) passed around by word of mouth | Synonyms: rumor, rumour |
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| immunoassay | (noun) identification of a substance (especially a protein) by its action as an antigen | Synonyms: immunochemical assay |
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| naysayer | (noun) someone with an aggressively negative attitude | - |
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| naysaying | (noun) the act of saying no to a request | - |
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| radioimmunoassay | (noun) immunoassay of a substance that has been radioactively labeled | - |
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| say | (noun) the chance to speak | - |
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| sayeret | (noun) Israel's elite secret commando unit responsible for counterterrorist and top secret intelligence gathering and hostage rescue missions | Synonyms: Sayeret Mat'kal, Sayeret Matkal |
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| saying | (noun) a word or phrase that particular people use in particular situations | Synonyms: expression, locution |
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| sayonara | (noun) a farewell remark | Synonyms: adieu, adios, arrivederci, au revoir, auf wiedersehen, bye-bye, bye, cheerio, good-by, good-bye, good day, goodby, goodbye, so long |
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| soothsayer | (noun) someone who makes predictions of the future (usually on the basis of special knowledge) | Synonyms: forecaster, predictor, prognosticator |
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| soothsaying | (noun) the art or gift of prophecy (or the pretense of prophecy) by supernatural means | Synonyms: divination, foretelling, fortune telling |
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