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单词 rutile
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ru•tile  (ro̅o̅′tēl, -tīl),USA pronunciation n. 
  1. Mineralogya common mineral, titanium dioxide, TiO2, usually reddish-brown in color with a brilliant metallic or adamantine luster, occurring in crystals: used to coat welding rods.
  • Latin rutilus red1
  • German Rutil
  • French
  • 1795–1805

Collins Concise English Dictionary © HarperCollins Publishers::
rutile /ˈruːtaɪl/ n
  1. a black, yellowish, or reddish-brown mineral, found in igneous rocks, metamorphosed limestones, and quartz veins. It is a source of titanium. Composition: titanium dioxide. Formula: TiO2. Crystal structure: tetragonal
Etymology: 19th Century: via French from German Rutil, from Latin rutilus red, glowing
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更新时间：2025/7/23 16:43:09