WordWeb Online

1. An appraisal of the state of affairs
   "they made an assay of the contents";
   - check
    
2. A substance that is undergoing an analysis of its components
    
3. A written report of the results of an analysis of the composition of some substance
    
4. 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.

1. Analyse (chemical substances)
    
2. Make an effort to accomplish something
   "He assayed to shake off his fears";
   - try, seek, attempt, essay

Derived forms: assays, assaying, assayed

Type of: act, analyse [Brit, Cdn], analyze [N. Amer], appraisal, assessment, canvass, examine, move, report, run, study, substance, test, trial, written report

Encyclopedia: Assay, Indre-et-Loire