Simple Definition of assay

from our Learner's Dictionary

assay

verb

assays; assayed; assaying
technical : to test something (such as a metal or drug) to find out what it contains
They assayed the gold to determine its purity.

Cite this Entry

“Assay.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/assay. Accessed 23 Jun. 2026.

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