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单词 tridymite
释义

WordReference Random House Unabridged Dictionary of American English © 2024
trid•y•mite  (trid′ə mīt′),USA pronunciation n. [Mineral.]
  1. a polymorph of quartz occurring in the form of small crystals, commonly twinned, in siliceous volcanic rocks.
  • German Tridymit, equivalent. to tridym- (Greek trídym(os) triple, equivalent. to tri- tri- + (dí)dymos didymous) + -it -ite1
  • 1865–70

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