litmus paper

litmus paper
A pH indicator paper. It turns red in acidic and blue in alkaline solutions.

Glossary of Biotechnology for Food and Agriculture . 2015.

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  • litmus paper — n paper colored with litmus and used as an acid base indicator * * * bibulous paper impregnated with a solution of litmus, dried, and cut into strips. If slightly alkaline, the paper is blue and is used as a test for acids, which turn it red; if… …   Medical dictionary

  • Litmus paper — Litmus Lit mus, n. [D. lakmoes; lak lacker + moes a thick preparation of fruit, pap, prob. akin to E. meat: cf. G. lackmus. See {Lac} a resinous substance.] (Chem.) A dyestuff extracted from certain lichens ({Roccella tinctoria}, {Lecanora… …   The Collaborative International Dictionary of English

  • litmus paper — litmus ,paper noun uncount paper that contains litmus . If the paper touches an acid, it turns red, and if it touches an ALKALI, it turns blue …   Usage of the words and phrases in modern English

  • litmus paper — litmus .paper n [U] paper containing litmus, used to test whether a chemical is an acid or an ↑alkali …   Dictionary of contemporary English

  • litmus paper — ► NOUN ▪ paper stained with litmus, used as a test for acids or alkalis …   English terms dictionary

  • litmus paper — n. absorbent paper treated with litmus and used as an acid base indicator …   English World dictionary

  • litmus paper — lakmuso popierius statusas T sritis Standartizacija ir metrologija apibrėžtis Indikatorinis lakmuso tirpale įmirkytas popierius. atitikmenys: angl. litmus paper vok. Lackmuspapier, n rus. лакмусовая бумага, f pranc. papier de tournesol, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • litmus paper — paper covered in a special substance and used to detect acids and bases …   English contemporary dictionary

  • litmus paper — noun unsized paper treated with litmus for use as an acid base indicator • Hypernyms: ↑paper • Substance Meronyms: ↑litmus, ↑litmus test …   Useful english dictionary

  • litmus paper — UK / US noun [uncountable] chemistry paper that contains litmus. If the paper touches an acid, it turns red, and if it touches an alkali, it turns blue …   English dictionary

  • litmus paper — noun Date: 1803 unsized paper colored with litmus and used as an indicator …   New Collegiate Dictionary

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