| 单词 | tridymite |
| 释义 | tridymite /trid"euh muyt'/, n. Mineral. a polymorph of quartz occurring in the form of small crystals, commonly twinned, in siliceous volcanic rocks. [1865-70; < G Tridymit, equiv. to tridym- (Gk trídym(os) triple, equiv. to tri- TRI- + (dí)dymos DIDYMOUS) + -it -ITE1] |
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