1 : examination and determination as to characteristics (such as weight, measure, or quality) 2 : analysis (as of an ore or drug) to determine the presence, absence, or quantity of one or more components also : a test used in this analysis. 3 : a substance to be assayed also : the tabulated result of assaying.

What does Assay mean in writing?

An essay is a "short formal piece of writing.. dealing with a single subject" ("Essay," 2001). It is typically written to try to persuade the reader using selected research evidence ("Essay," 1997).

Does assay mean test?

An assay is a process of analyzing a substance to determine its composition or quality. The term is often used in the mining industry to refer to tests of ore or minerals. The term assay is also used in the environmental, chemical and pharmaceutical industries. Assaying is also important in futures markets.