Definition of litmus Litmus
/lɪˈtmʌs/ - [litmus] - lit•mus
We found 7 definitions of litmus from 5 different sources.
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What does litmus mean?
WordNet
NounPlural: litmuses |
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| litmus - 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 | ||
| litmus test | ||
| acid-base indicator an indicator that changes color on going from acidic to basic solutions | ||
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Wiktionary 
- litmus (Noun)
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 .
Webster DictionaryWebster's Unabridged Dictionary 📘
- litmus (n.)
A dyestuff extracted from certain lichens (Roccella tinctoria, Lecanora tartarea, etc.), as a blue amorphous mass which consists of a compound of the alkaline carbonates with certain coloring matters related to orcin and orcein.
Chambers DictionaryChamber's 20th Century Dictionary 📕
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litmus
lit′mus, n. a dye obtained from certain lichens, originally red, but becoming blue on the addition of alkalies or of lime.—Litmus paper, paper used in chemical testing, tinged blue by litmus, reddened by an acid, made blue again by an alkali. [For lakmose—Dut. lakmoes—lak, lac, moes, pulp.]
Part of speech
🔤- litmus, noun, singular of litmuses.
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