a test that proves a hypothesis or validity of a product or idea. a test which really proves the value, quality or truth of something. a sure or decisive test.
Why is it called an acid test?
The acid-test ratio gets its name from the historic use of acid to test metals for gold. If acid was applied to a metal and didn't corrode it, that meant it was real gold. However, if the metal failed the test, it was considered valueless.
What does the phrase acid test mean?
an experience or situation that proves how skilful or effective someone or something is. My first really stressful day when things go wrong: that will be the real acid test.
Why is quick ratio called acid test?
The quick ratio is often called the acid test ratio in reference to the historical use of acid to test metals for gold by the early miners. If the metal passed the acid test, it was pure gold. If metal failed the acid test by corroding from the acid, it was a base metal and of no value.