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litmus

/'litmәs/

📖 中文释义

  1. n. 石蕊
  2. [化] 石蕊

🔗 释义中的汉语词

📘 English Definition(英文释义)
  1. n. 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