The Collaborative International Dictionary of English v.0.48:
Crocodilia \Croc`o*dil"i*a\ (-d?l"?-?), n. pl. [NL., fr. L. crocodilus crocodile.] (Zool.) An order of reptiles including the crocodiles, gavials, alligators, and many extinct kinds. [1913 Webster]WordNet (r) 3.0 (2006):
Crocodilia n 1: crocodiles; alligators; caimans; gavials [syn: Crocodylia, order Crocodylia, Crocodilia, order Crocodilia]