ASSAY definition: to examine or analyze. See examples of assay used in a sentence.

The meaning of ASSAY is to analyze (something, such as an ore) for one or more specific components. How to use assay in a sentence. Did you know?

ASSAY definition: 1. to examine a substance to find out how pure it is or what its properties (= qualities) are: 2…. Learn more.

As a noun, assay means a test or appraisal to determine the components of a substance or object. As a verb, it refers to the act of analyzing, or of conducting that test. It is usually used in chemistry-related …

An assay is a test of a substance to find out what chemicals it contains. It is usually carried out to find out how pure a substance is.

Define assay. assay synonyms, assay pronunciation, assay translation, English dictionary definition of assay. an analysis of a substance, esp. of an ore or drug: His find required an assay to determine its …

An assay is an investigative (analytic) procedure in laboratory medicine, mining, pharmacology, environmental biology and molecular biology for qualitatively assessing or quantitatively measuring …

Dec 22, 2025 · Verb assay (third-person singular simple present assays, present participle assaying, simple past and past participle assayed) (transitive) To attempt (something). [from 14th c.]

to examine or analyze: to assay a situation; to assay an event. Metallurgy to analyze (an ore, alloy, etc.) in order to determine the quantity of gold, silver, or other metal in it.

assay, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary