| 单词 | bort |
| 释义 | bort —borty, adj. /bawrt/, n. low-quality diamond, in granular aggregate or small fragments, valuable only in crushed or powdered form, esp. for industrial use as an abrasive. Also, boart, bortz /bawrts/. Cf. ballas, carbonado2. [1615-25; appar. metathetic var. of *brot (OE gebrot fragment); akin to ME brotel brittle, ON brot fragment] |
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