WordReference Random House Learner's Dictionary of American English © 2019
as•say /v. æˈseɪ; n. ˈæseɪ, æˈseɪ/USA pronunciation   v. [+ object]
  1. to examine, analyze, or evaluate: to assay a situation.
  2. Metallurgyto examine and analyze (an ore, etc.) to determine how pure it is.

n. [countable]
  1. Metallurgyan analysis of the parts of a substance, esp. to find out the amount of metal in an ore or alloy, or the amount of a drug in a substance.

WordReference Random House Unabridged Dictionary of American English © 2019
as•say  (v. a sā;n. asā, a sā),USA pronunciation v.t. 
  1. to examine or analyze:to assay a situation; to assay an event.
  2. Metallurgyto analyze (an ore, alloy, etc.) in order to determine the quantity of gold, silver, or other metal in it.
  3. Drugs[Pharm.]to subject (a drug) to an analysis for the determination of its potency or composition.
  4. to judge the quality of;
    evaluate:to assay someone's efforts.
  5. to try or test;
    put to trial:to assay one's strength; to assay one's debating abilities.
  6. to attempt;
    essay:to assay a dance step.

  1. Metallurgyto contain, as shown by analysis, a certain proportion of usually precious metal.

  1. Metallurgydetermination of the amount of metal, esp. gold or silver, in an ore, alloy, etc.
  2. a substance undergoing analysis or trial.
  3. a detailed report of the findings in assaying a substance.
  4. [Archaic.]examination;
as•saya•ble, adj. 
as•sayer, n. 
  • Middle French; variant of essay
  • Middle English 1250–1300

Collins Concise English Dictionary © HarperCollins Publishers::

assay vb /əˈseɪ/
  1. to subject (a substance, such as silver or gold) to chemical analysis, as in the determination of the amount of impurity
  2. (transitive) to attempt (something or to do something)
n /əˈseɪ; ˈæseɪ/
  1. an analysis, esp a determination of the amount of metal in an ore or the amounts of impurities in a precious metal
  2. (as modifier): an assay office
  3. a substance undergoing an analysis
  4. a written report on the results of an analysis
  5. a test
Etymology: 14th Century: from Old Northern French assai; see essay

asˈsayer n

'assay' also found in these entries:

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