Litmus-paper definition
An unsized white paper impregnated with litmus and used as a pH or acid-base indicator.
noun
Absorbent paper treated with litmus and used as an acid-base indicator.
noun
Paper containing a water-soluble mixture of different dyes extracted from certain lichens. The resulting piece of paper is used to test materials for acidity.
noun
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Other Word Forms
Noun
Singular:
litmus-paper
Plural:
litmus papers