- pronunciation:
- lIt
m
s
peI
pr
- features:
- Word History, Word Explorer
| part of speech: |
noun |
| definition: |
a small strip of treated paper used in chemistry. Litmus paper turns red in an acid and blue in a base.
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The word "litmus" comes from early Scandinavian words that mean "drip" and "moss." Litmus is a blue dye obtained from lichen plants. The term
litmus paper was first used in 1803.