litmus


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lit·mus

 (lĭt′məs)
n.
A water-soluble bluish powder derived from certain lichens that changes to red with increasing acidity and to deeper blue with increasing basicity.
[Middle English litemose (of Scandinavian origin; akin to Old Norse litmosi, dyer's herbs litr, color, dye + mosi, bog, moss) and Middle English lykemose (from Middle Dutch lijkmoes, variant of lēcmoes : lēken, to drip + moes, moss).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

litmus

(ˈlɪtməs)
n
(Elements & Compounds) a soluble powder obtained from certain lichens. It turns red under acid conditions and blue under basic conditions and is used as an indicator
[C16: perhaps from Scandinavian; compare Old Norse litmosi, from litr dye + mosi moss]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

lit•mus

(ˈlɪt məs)

n.
a blue coloring matter obtained from certain lichens, esp. Roccella tinctoria, that turns blue in alkaline solution and red in acid solution: widely used as a chemical indicator.
[1495–1505; earlier lytmos < Old Norse litmosi dye-moss =lit- color, dye + mosi moss]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

lit·mus

(lĭt′məs)
A colored powder, obtained from certain lichens, that changes to red in an acid solution and to blue in an alkaline solution. ♦ Litmus is typically added to paper to make litmus paper, which is used to determine whether a solution is basic or acidic.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.litmus - a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutionslitmus - 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
litmus paper - unsized paper treated with litmus for use as an acid-base indicator
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

litmus

[ˈlɪtməs]
A. N → tornasol m
B. CPD litmus paper N → papel m de tornasol
litmus test N → prueba f de tornasol (fig) → prueba f de fuego
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

litmus

n → Lackmus m or nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
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References in classic literature ?
He dropped a piece of litmus paper into an acid, when it changed instantly to red, and on floating it in an alkali it turned as quickly to blue.
"The litmus paper is still the litmus paper," he enunciated in the formal manner of the lecturer.
View in context
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Newcastle University: LITMUS - Progress towards diagnosing and better treating liver disease
Litmus Automation, an Industrial Internet of Things platform provider, has collaborated with fos4X GmbH, a company that provides sensors and solutions to drive smart wind energy.
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Not cheap at PS14.99 a bottle, Litmus Orange Bacchus is made by leaving the skins on grapes during the ageing process then pressing the wine into five-year-old French oak barrels to give it a distinctive hue.
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Summary: Mandalay (Myanmar), Apr 3 (ANI): Indian women's football team head coach Maymol Rocky dubbed the AFC Olympic Qualifiers Round 2 opening match against Indonesia as a mental litmus test for the team.
AFC Olympic Qualifiers: Indian eves to face mental litmus test against Indonesia
But, really, setting quotas as a "litmus test" is just as dumb as "equal opportunity" quotas.
Why must boards have 'diversity' litmus test?
Senator Risa Hontiveros said on Monday that the barring of a Filipino television crew from filming a documentary at the Panatag (Scarborough) Shoal by members of the Chinese Coast Guard should serve as a litmus test for the new Department of Foreign Affairs (DFA) chief.
Chinese Coast Guard's barring of TV crew a litmus test for DFA - Hontiveros
A litmus test of productivity is to keep reducing work force until they become productive.
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The Palace order was a litmus test for new Ombudsman Samuel Martires, said Bayan Muna Rep.
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Might be, but litmus test of humanity is yet to be passed!
True identity!

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