crocodilecroc‧o‧dile /ˈkrɑkəˌdaɪl/ noun [countable] a large reptile with a long body and a long mouth with sharp teeth that lives in rivers and lakes in hot countries [Origin: 1200–1300 Old French cocodrille, from Latin crocodilus, from Greek, “lizard, crocodile,” from kroke “small stone” + drilos “worm”]