- a soluble powder obtained from certain lichens. It turns red under acid conditions and blue under basic conditions and is used as an indicator
单词 | litmus |
释义 | WordReference Random House Learner's Dictionary of American English © 2024 lit•mus /ˈlɪtməs/USA pronunciation n. [uncountable] WordReference Random House Unabridged Dictionary of American English © 2024
lit•mus (lit′məs),USA pronunciation n.
Collins Concise English Dictionary © HarperCollins Publishers:: litmus /ˈlɪtməs/ n
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