Understanding ‘The Acid Test’: Its Scientific Roots

  Updated 23 November 2025 Definition The term "the acid test", to test the real worth of something, is widely used. The definition and example given in the Cambridge On-line English dictionary are succinct: The true test of the value of something. It looks good, but will people buy it? That's the acid test.  The origin… Continue reading Understanding ‘The Acid Test’: Its Scientific Roots