n (1)水晶(kind of colourless natural mineral substance that is transparent and looks like pure ice)[U]：clear as～水晶般透亮;be made of～由水晶制成;a～necklace 水晶项链;～set 晶体管收音机;

(2)水晶饰品(shaped piece of this，esp when used as an ornament or jewel)[C]：a necklace of～s水晶项链;a～bracelet/watch/ear-ring水晶手镯/表/耳环;

(3)水晶玻璃器皿(things made of high-quality cut glass)[U]：The dining-table shone with silver and～.餐桌上银质和水晶玻璃的器皿闪闪发光。a～wine glass/vase/chandelier水晶玻璃的酒杯/花瓶/枝形吊灯;a large collection of～许多水晶玻璃器皿;

(4)结晶体(very small regular many-sided shape that some substances have naturally on becoming solid)[C]：sugar/salt/snow/ice～s 糖/盐/雪/冰的结晶体;～shapes晶体状;

(5)(钟表)透明的保护盖(transparent glass or plastic cover over the face of a clock or watch)[C](AmE);

adj 清澈透明的(like crystal in clearness;transparent)：～water清澈的水;

→′crystalline adj 水晶制成的;水晶般的;清澈(透明)的;′crystallize，-ise v (使)结晶;(使)明确(定形);′crystal-gazing n 水晶球占卜;预测(言)