| 释义 |
opal/ˈəʊp(ə)l/n. a quartzlike form of hydrated silica, usu. white or colourless and sometimes showing changing colours, often used as a gemstone 蛋白石(一种似石英形状的硅氧矿石，白色或无色，有时变化颜色，通常用作宝石) [French opale or Latin opalus, probably ultimately from Sanskrit upalas ‘precious stone’] |