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litmus
has definitions from the fields of chemistry,color
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[ noun ] (chemistry,color) a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator
Synonyms Related terms acid-base_indicator coloring_material litmus_paper litmus_paper |
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[ noun ] (chemistry) absorbent paper full of litmus; it is turned red by acids and blue by alkalis
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