acid test


I. noun [in sing.]

1. a conclusive test of the success or value of something

gritstone is the acid test of a climber’s ability.
– origin figuratively, from the original use denoting a test for gold using nitric acid.

Add Comment

By Oxford


Get in touch

Quickly communicate covalent niche markets for maintainable sources. Collaboratively harness resource sucking experiences whereas cost effective meta-services.