Acetabulum

[æsә'tæbjulәm]

Definition

(noun.) the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint.

Editor: Margaret--From WordNet

Definition

(n.) A vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc.

(n.) The bony cup which receives the head of the thigh bone.

(n.) The cavity in which the leg of an insect is inserted at its articulation with the body.

(n.) A sucker of the sepia or cuttlefish and related animals.

(n.) The large posterior sucker of the leeches.

(n.) One of the lobes of the placenta in ruminating animals.

Checker: Noelle

Definition

n. (anat.) the cavity which receives the head of the thigh-bone: also a glandular substance found in the placenta of some animals:—pl. Acetab′ula.

Inputed by Frieda