litmus test

noun

: something (such as an opinion about a political or moral issue) that is used to make a judgment about whether someone or something is acceptable

Full Definition of LITMUS TEST

: a test in which a single factor (as an attitude, event, or fact) is decisive

See litmus test defined for English-language learners

1952

Next Word in the Dictionary: LitomosoidesPrevious Word in the Dictionary: litmus paperAll Words Near: litmus test

What made you want to look up litmus test? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears