Search Result for "megatherian": 
Wordnet 3.0

NOUN (1)

1. a large extinct ground sloth;
[syn: megatherian, megatheriid, megatherian mammal]



WordNet (r) 3.0 (2006):

megatherian
    n 1: a large extinct ground sloth [syn: megatherian,
         megatheriid, megatherian mammal]