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colcothar

/'kɔlkәθә/

📖 中文释义

  1. n. 褐红色铁氧化物
  2. [化] 铁丹
📘 English Definition（英文释义）
  1. n. Polishing rouge; a reddish brown oxide of iron, used in
  2. polishing glass, and also as a pigment; -- called also crocus Martis.
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