Associations to the word «Litmus»

Wiktionary

LITMUS, noun. (uncountable) A dyestuff extracted from certain lichens, that changes color when exposed to pH levels greater than or less than certain critical levels.
LITMUS, noun. A simple test of acidity in a liquid using litmus, usually in the form of litmus paper.
LITMUS, noun. A simple test of any attribute; a litmus test.
LITMUS PAPER, noun. Paper containing a water-soluble mixture of different dyes extracted from certain lichens. The resulting piece of paper is used to test materials for acidity.
LITMUS TEST, noun. (chemistry) A simple test for the acidity or alkalinity of a substance, using litmus paper.
LITMUS TEST, noun. (figuratively) (by extension) Any test which produces a decisive result by measuring a single indicator.
LITMUS TESTS, noun. Plural of litmus test

Dictionary definition

LITMUS, noun. 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.

Wise words

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Florence Scovel Shinn