| 单词 | dioptase |
| 释义 | dioptase[ dahy-op-teys ] / daɪˈɒp teɪs / nouna mineral, hydrous copper silicate, CuSiO3⋅H2O, occurring in emerald-green crystals. Origin of dioptase1795–1805; <French, equivalent to di-di-3 + Greek optasía view Words nearby dioptasediophantine analysis, diophantine equation, Diophantus, diopside, diopsimeter, dioptase, diopter, dioptometer, dioptre, dioptric, dioptric aberration Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for dioptasedioptase / (daɪˈɒpteɪs, -teɪz) / nouna green glassy mineral consisting of hydrated copper silicate in hexagonal crystalline form. Formula: Cu 6 Si 6 O 18 .6H 2 O Word Origin for dioptaseC19: from French, from Greek dia- through + optos visible Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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