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.
1 The Palestinians see the issue as a litmus test of his intent.
2 He wet a piece of litmus and buried it in the soil.
3 Now that one post-crisis litmus test has come and gone, another looms.
4 Then why should we not apply the same litmus test to you?
5 For Republicans, being anti-science and anti-environment is a litmus test to viability.
6 And that is the litmus test for the debate that will come today.
7 Despite this, the ban has remained a moral litmus test for Democratic politicians.
8 Human rights, including women's rights, are a litmus test for democracy.
9 Ideological litmus tests could also eliminate people progressives might want on the list.
10 On the litmus - test issue of choice, Dole is covering her bases.
11 The match serves as a litmus test for the progress of machine learning.
12 The siege was implicitly a litmus test for supporters in Ireland.
13 The litmus test for any Raisin production is, is it moving or not?
14 While it may not be a Test, it is a rugby litmus test.
15 It was as much Hoffman's litmus test of the man's resolve as anything.
16 He also made an appearance at Sting, the litmus test for dancehall artistes.
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