boracite /'bɔ:rә,sait/ 📖 中文释义 n. [矿]方硼石 📘 English Definition(英文释义) n. A mineral of a white or gray color occurring massive andin isometric crystals; in composition it is a magnesium borate withmagnesium chloride. ← boraciferous B 字母词表 boracium →