English version

litmus in Chemistry topic

From Longman Dictionary of Contemporary Englishlitmuslit‧mus /ˈlɪtməs/ noun [uncountable]  HCa chemical that turns red when it touches acid, and blue when it touches an alkali
Examples from the Corpus
litmusThe case of travellers is something of a litmus test.Forbes, meanwhile, has made winning Arizona his litmus test for capturing the nomination.The use of litmus paper furnishes another example of such a transformation.What clearer laboratory or litmus test could there be to show that our methods are genuinely additional?He instituted a stringent litmus test on doctrinal matters.In a drawer the litmus paper mused upon which way to turn.Comparison is the only true litmus test of objectivity.