Quick definitions from WordNet (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.
▸ noun: an appraisal of the state of affairs ("They made an assay of the contents")
▸ 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
▸ Also see 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.
▸ noun: an appraisal of the state of affairs ("They made an assay of the contents")
▸ 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
▸ Also see assay