- litmus paper
-
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.
Wikipedia foundation.
litmus paper
Look at other dictionaries:
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
