Search Result for "buttock": 
Wordnet 3.0

NOUN (1)

1. either of the two large fleshy masses of muscular tissue that form the human rump;
[syn: buttock, cheek]


The Collaborative International Dictionary of English v.0.48:

Buttock \But"tock\, n. [From Butt an end.] 1. The part at the back of the hip, which, in man, forms one of the rounded protuberances on which he sits; the rump. Often used in the plural -- see buttocks. Syn: cheek. [1913 Webster] 2. (Naut.) The convexity of a ship behind, under the stern. --Mar. Dict. [1913 Webster]
WordNet (r) 3.0 (2006):

buttock n 1: either of the two large fleshy masses of muscular tissue that form the human rump [syn: buttock, cheek]