The mottled,horny,translucent,brownish covering of the carapace of certain tortoises or turtles,especially the hawksbill,used to make combs,jewelry,and other articles.

• 龟甲，玳瑁某些乌龟或甲鱼肉体上覆盖着的有花纹，角质、透明的，褐色的甲壳特别是玳瑁龟的甲壳，通常用来制作梳子，珠宝和其它工艺品。