单词 | macropinacoid |
释义 | > as lemmasmacropinacoid macropinacoid n. Brit. /ˌmakrə(ʊ)ˈpɪnəˌkɔɪd/ , U.S. /ˌmækroʊˈpɪnəˌkɔɪd/ , /ˌmækrəˈpɪnəˌkɔɪd/ Crystallography a pinacoid parallel to the vertical and macrodiagonal axes of a crystal.ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > crystals (other miscellaneous) > [noun] > crystal planes pinacoid1858 macropinacoid1883 1883 Encycl. Brit. XVI. 360/2 The limiting macropinacoid. 1960 F. H. Pough Field Guide Rocks & Minerals (ed. 3) iv. 50 The face pairs paralleling each other at opposite ends of the axes are the pinacoids, known respectively as basal, front, and side, or basal, macro- and brachypinacoids. < as lemmas |
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