单词 | tephrite |
释义 | Word Frequency tephrite(ˈtɛfraɪt) noun a variety of basalt containing plagioclase, augite, and a feldspathoid, commonly nepheline, or leucite Derived forms tephritic (tɪˈfrɪtɪk) adjective Word origin C17: from Greek tephros, from tephra ashes; see -ite1 |
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