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Dictionary definition for: Assay

1. (n) an appraisal of the state of affairs; "they made an assay of the contents" "a check on its dependability under stress"

2. (v) analyze (chemical substances)

3. (n) a substance that is undergoing an analysis of its components

4. (v) make an effort or attempt; "He tried to shake off his fears" "The infant had essayed a few wobbly steps" "The police attempted to stop the thief" "He sought to improve himself" "She always seeks to do good in the world"

5. (n) a written report of the results of an analysis of the composition of some substance

6. (n) 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.

WordNet 2.1 Copyright Princeton University. All rights reserved.