臀部,無名骨,髖
Coxa \Cox"a\ (k?ks"?), n. [L., the hip.] (Zo["o]l.) The first joint of the leg of an insect or crustacean.
coxa n : the ball-and-socket joint between the head of the femur and the acetabulum [syn: {hip}, {hip joint}, {articulatio coxae}] [also: {coxae} (pl)]