Megathere
Pronunciation : Meg"a*there, Meg`a*the"ri*um
Part of Speech : n.
Etymology : [NL. megatherium, fr. Gr. me`gas great + thyri`on beast.] (Paleon.)
Definition : Defn: An extinct gigantic quaternary mammal, allied to the ant-eaters and sloths. Its remains are found in South America.
Source : Webster's Unabridged Dictionary, 1913