n 1  :  examination and determination as to characteristics (as weight, measure, or quality)  2  :  analysis (as of a drug) to determine the presence, absence, or quantity of one or more components - compare BIOASSAY   3  :  a substance to be assayed : also  :  the tabulated result of assaying
, vt :  to analyze (an impure substance or mixture) for one or more specific components <the sample was ed for drug content>  .
 
   
 
Similar sounding terms:  Ace  as or As or AS  ASA  asci 
 
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