What is the meaning of assay?

noun

• An appraisal of the state of affairs.
  • usage: "they made an assay of the contents"; "a check on its dependability under stress"
  • synonyms: check
• A substance that is undergoing an analysis of its components.
• A written report of the results of an analysis of the composition of some substance.
• 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..

verb

• Analyze (chemical substances. )
• Make an effort or attempt.
  • usage: "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"
  • synonyms: try, seek, attempt, essay