crocodile
/ˈkrɒkədaɪl/noun
1
- a large predatory semiaquatic reptile with long jaws, long tail, short legs, and a horny textured skin, using submersion and stealth to approach prey unseen. The crocodile has been extensively hunted for its valuable skin.鳄, 鳄鱼。
1.1
- Family Crocodylidae: three genera, in particular Crocodylus, and several species.鳄科：3属, 尤指鳄属（拉丁名Crocodylus）, 数种。
1.2
- mass noun leather made from crocodile skin, used especially to make bags and shoes（尤指用于制包或制鞋的）鳄鱼皮。
2
- Brit. informal a line of schoolchildren walking in pairs〈英, 非正式〉两人一排成纵列行走的小学生。
词源
Middle English cocodrille, cokadrill, from Old French cocodrille, via medieval Latin from Latin crocodilus, from Greek krokodilos 'worm of the stones', from krokē 'pebble' + drilos 'worm'. The spelling was changed in the 16th cent. to conform with the Latin and Greek forms.