About The Word Litmus
Learn about the word Litmus to help solve your crossword puzzle. Discover Litmus definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Litmus
| Litmus Definition And Meaning |
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What's The Definition Of Litmus?
[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
Synonyms | Synonyms for Litmus: litmus test Related Terms | Find terms related to Litmus: See Also | acid-base indicator | litmus paper Litmus In Webster's Dictionary \Lit"mus\, n. [D. lakmoes; lak lacker + moes a thick
preparation of fruit, pap, prob. akin to E. meat: cf. G.
lackmus. See {Lac} a resinous substance.] (Chem.)
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.
Note: Litmus is used as a dye, and being turned red by acids
and restored to its blue color by alkalies, is a common
indicator or test for acidity and alkalinity.
{Litmus paper} (Chem.), unsized paper saturated with blue or
red litmus, -- used in testing for acids or alkalies.
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