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单词 pegmatite
释义

WordReference Random House Unabridged Dictionary of American English © 2024
peg•ma•tite  (peg′mə tīt′),USA pronunciation n. [Petrol.]
  1. Rocksa coarsely crystalline granite or other high-silica rock occurring in veins or dikes.
  • Greek pēgmat- (stem of pêgma) anything fastened together, a bond (Compare pēgnýein to stick) + -ite1
  • 1825–35;
peg•ma•tit•ic  (peg′mə tit′ik),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
pegmatite /ˈpɛɡməˌtaɪt/ n
  1. any of a class of exceptionally coarse-grained intrusive igneous rocks consisting chiefly of quartz and feldspar: often occurring as dykes among igneous rocks of finer grain
Etymology: 19th Century: from Greek pegma something joined together
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更新时间：2025/7/23 12:26:44