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litmus paper

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

First recorded in 1795–1805
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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Medical definitions for litmus paper

litmus paper

n.
An unsized white paper impregnated with litmus and used as a pH or acid-base indicator.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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