litmus 1
noundomain: substance
Princeton WordNet [ver.3.1]
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EnglishDefinition
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
Synonyms
- litmus test 1
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
