acid test


Definition of acid test

: 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 The local government said residents must provide nucleic-acid test results within seven days before going to public places or taking public transport, effective after the holiday break. NBC News, 29 Apr. 2022 The Beijing Games risk becoming an acid test for credibility on corporate social responsibility. Nathaniel Taplin, WSJ, 4 Feb. 2022 Batman sits square in that company, the proverbial middle manager at the acid test. Darren Franich,, 5 Jan. 2022 The acid test is, of course, how much green hydrogen produced using these methods will cost. Whitaker Irvin Jr., Forbes, 3 Jan. 2022 Also ready for the acid test: quarterback Chance Nolan. oregonlive, 24 Sep. 2021 Hard decisions are history’s acid test for Presidents. Brian Bennett, Time, 2 Sep. 2021 The first foreign trip for any vice president is an acid test, and Harris was under more pressure than most as a potential future leader of the party and the first woman of color to hold the office. Maeve Reston, CNN, 9 June 2021 The President has made the push to find common ground on infrastructure reform the acid test of his vow to bring the country together that anchored his 2020 campaign and is a centerpiece of his entire presidency. Stephen Collinson, CNN, 24 May 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acid test.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of acid test

1854, in the meaning defined above

History and Etymology for acid test

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

Learn More About acid test

Time Traveler for acid test

Time Traveler

The first known use of acid test was in 1854

See more words from the same year

Dictionary Entries Near acid test

acid sodium carbonate

acid test


See More Nearby Entries 

Statistics for acid test

Last Updated

11 May 2022

Cite this Entry

“Acid test.” Dictionary, Merriam-Webster, Accessed 21 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!