| NOUN | substance | litmus, litmus test | a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions |
|---|
| Sounds | lih'tmahs | |
|---|---|---|
| Rhymes | abacus ... zealous: 1164 rhymes with ahs... | |
| Meaning | 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. | |
|---|---|---|
| Synonym | litmus test | |
| Broader | acid-base indicator | An indicator that changes color on going from acidic to basic solutions |
| Substance of | litmus paper | unsized paper treated with litmus for use as an acid-base indicator |
| Spanish | tornasol | |
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