Meaning of LITMUS TEST

Pronunciation:			'litmus test
WordNet Dictionary
	Definition:		[n]  a test that relies on a single indicator; "her litmus test for good breeding is whether you split infinitives" [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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	Synonyms:		litmus
	See Also:		acid-base indicator, exam, examination, litmus paper, test