Definition of Assay
a test or assessment on something to determine what it contains
Examples of Assay in a sentence
The laboratory conducted an assay to quantitatively measure the presence of ore in the composition.
The drug supplement will undergo an independent assay to find out whether or not it actually accomplishes what it claims to do.
Every assay conducted by the pharmaceutical company is considered to be one step forward, leading toward the marketing of the drug.
Before allowing the nuclear plant to go live, an extremely thorough assay was conducted that lasted for two weeks.
A crude oil assay provides vital data that is important to its producers, refiners and oil traders.
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