litmus paper


Definition of litmus paper

: unsized paper colored with litmus and used as an indicator

Examples of litmus paper in a Sentence

Recent Examples on the Web Liquid samples can be tested with detector paper, which is similar to a large piece of litmus paper. Popular Mechanics Editors, Popular Mechanics, "How the Experts Identify Chemical Weapons and Prove an Attack," 7 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'litmus paper.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of litmus paper

1803, in the meaning defined above

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The first known use of litmus paper was in 1803

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Cite this Entry

“Litmus paper.” Dictionary, Merriam-Webster, Accessed 24 Sep. 2020.

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More Definitions for litmus paper

litmus paper


English Language Learners Definition of litmus paper

technical : special paper that is used to test how much acid is in a solution

litmus paper

lit·​mus paper | \ ˈlit-məs- \

Kids Definition of litmus paper

: paper treated with coloring matter that turns red in the presence of an acid and blue in the presence of a base

litmus paper


Medical Definition of litmus paper

: paper colored with litmus and used as an acid-base indicator

More from Merriam-Webster on litmus paper

Nglish: Translation of litmus paper for Spanish Speakers

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