Found 2 items, similar to megathere.
English → English (WordNet) Definition: megathere megathere n : gigantic extinct terrestrial sloth-like mammal of the Pliocene and Pleistocene in America [syn: ground sloth]
English → English (gcide) Definition: Megathere Megathere \Meg"a*there\, Megatherium \Meg`a*the"ri*um\, n. [NL. megatherium, fr. Gr. me`gas great + qhri`on beast.] (Paleon.) An extinct gigantic quaternary mammal, allied to the ant-eaters and sloths. Its remains are found in South America. [1913 Webster]