litmus test

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litmus test

n.
1. A test for chemical acidity or basicity using litmus paper.
2. A test that uses a single indicator to prompt a decision: "The word 'hopefully' has become the litmus test to determine whether one is a language snob or a language slob" (William Safire).
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 test

n
1. (Chemistry) a test to establish the acidity or alkalinity of a mixture
2. a critical indication of future success or failure
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

lit′mus test`


n.
1. a test using litmus paper or solution to indicate the acidity or alkalinity of a solution.
2. a crucial test using a single issue or factor as the basis for judgment.
[1955–60]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.litmus test - a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutionslitmus test - 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
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
2.litmus test - a test that relies on a single indicator; "her litmus test for good breeding is whether you split infinitives"
exam, examination, test - a set of questions or exercises evaluating skill or knowledge; "when the test was stolen the professor had to make a new set of questions"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

litmus test

n (lit)Lackmustest m; (fig)entscheidender Test
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

litmus test

[ˈlɪtməsˌtɛst] n (also) (fig) → cartina al tornasole
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
Of course, the question also arises at a time when the Catholic right, inside and outside of formal church structures, is increasingly linking Catholic faith to a series of boundary-marking litmus tests. One must oppose the legalization of abortion and gay marriage.
Religious litmus tests are unconstitutional in America."
In a later interview with the Des Moines Register, Kerry continued, "I don't want to get into an argument about litmus tests. The focus is on the constitutional right that Roe established in America.
"We always pride ourselves on being able to offer litmus tests of the UK economy - passing the views of our members across the country onto the Government, " he said.