n. 1. 1 coextensive with the order Aepyorniformes. Syn. -- family Aepyornidae [ WordNet 1.5 ]
n. 1. 1 huge extinct flightless birds: elephant birds. Syn. -- order Aepyorniformes [ WordNet 1.5 ]
‖ n. [ Gr. &unr_; high + &unr_; bird. ] A gigantic (to 9 ft.) extinct flightless bird, of which fossils were found in Madagascar. Syn. -- elephant bird [ 1913 Webster + WordNet 1.5 ]