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Synonyms

litmus paper

American  

noun

  1. a strip of paper impregnated with litmus, used as a chemical indicator.


Etymology

Origin of litmus paper

First recorded in 1795–1805

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The best way to confirm that the solution is neutralized is with litmus paper.

From Seattle Times • Nov. 7, 2022

Watson recalls one telling advertising campaign: posters printed on litmus paper that said: “When acid rain is falling, you should see red” – offering a vivid illustration of the problem.

From The Guardian • Oct. 12, 2020

Less lofty in style than much of what Hindemith has written recently, it is tautly constructed, as responsive to the text's moods as litmus paper to acid.

From Time Magazine Archive

But that is not an immutable piece of parchment that judges can apply to laws like litmus paper.

From Time Magazine Archive

A method of testing soils for acidity, which has been in use for many years, is the simple litmus paper method.

From Right Use of Lime in Soil Improvement by Agee, Alva

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