litmus test Meaning and Definition
1. n. a test that relies on a single indicator
2. n. 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
1. n. a test that relies on a single indicator
2. n. 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
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