acid test

noun

Synonyms of acid testnext
: a severe or crucial test

Examples of acid test in a Sentence

The new team faced its first acid test when it played the national champions.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The acid test of whether California is getting bang for its taxpayers’ buck is the fact that former Californians have voted with their feet in droves. Jim Doti, Oc Register, 8 Mar. 2026 Additional sugar and acid tests are planned to confirm whether the liquid contains apple-specific compounds, like malic acid. Andrea Margolis, FOXNews.com, 15 Feb. 2026 This was a place and time in history of tremendous creativity that grew out of the acid test parties, the beatnik poets, and the Summer Of Love. Brian Halligan, Fortune, 25 Nov. 2025 The azaleas will be the acid test. Inga, San Diego Union-Tribune, 27 Oct. 2025 See All Example Sentences for acid test

Word History

Etymology

so called from the use of nitric acid to determine the gold content of jewelry

First Known Use

1854, in the meaning defined above

Time Traveler
The first known use of acid test was in 1854

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Cite this Entry

“Acid test.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acid%20test. Accessed 15 Mar. 2026.

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