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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