litmus test

(redirected from litmus tests)
Also found in: Dictionary, Thesaurus, Idioms.

litmus test

n.
A test for chemical acidity or basicity using litmus paper.
References in periodicals archive ?
But the Smithsonian controversy offers an occasion to see the theological weakness of such arguments--and of such litmus tests.
She added that Pax Christi supports a consistent ethic of life but refuses to use single-issue litmus tests to judge the moral fitness of any individual.
Somewhat confusingly, he asserts that ideological litmus tests are OK when they are applied to judges, but not to cabinet appointees.