| 单词 | pegmatite |
| 释义 | pegmatite —pegmatitic /peg'meuh tit"ik/, adj. /peg"meuh tuyt'/, n. Petrol. a coarsely crystalline granite or other high-silica rock occurring in veins or dikes. [1825-35; < Gk pegmat- (s. of pêgma) anything fastened together, a bond (Compare pegnýein to stick) + -ITE1] |
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