Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun litmus_test

2 senses of litmus test

Sense 1
litmus, litmus test -- (a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator)
       => acid-base indicator -- (an indicator that changes color on going from acidic to basic solutions)

Sense 2
litmus test -- (a test that relies on a single indicator; "her litmus test for good breeding is whether you split infinitives")
       => examination, exam, test -- (a set of questions or exercises evaluating skill or knowledge; "when the test was stolen the professor had to make a new set of questions")