Crossword Genius

Test for purity (5)

Ross

I believe the answer is:

assay

'test for purity' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for assay that I've seen before include "Test ore for content" , "Analyse to find the properties" , "Analyse ore for metal content" , "Test quality of metals" , "Test(ing) of a substance, such as precious metal" .)

I've seen this clue in the King Feature Syndicate, the Universal, The New York Times and the Newsday.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.