HyperDic: litmus_paper

English > 1 sense of the expression litmus paper:
NOUNsubstancelitmus paperunsized paper treated with litmus for use as an acid-base indicator
English > litmus paper: 1 sense > noun 1, substance
Meaningunsized paper treated with litmus for use as an acid-base indicator.
BroaderpaperA material made of cellulose pulp derived mainly from wood or rags or certain grasses
Substanceslitmus, litmus testA coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions
Spanishpapel de tornasol, tornasol

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