- (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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). acetabulum. Retrieved September 21, 2026, from http://smartdefine.org/acetabulum/definitions/1970368 |
| Chicago | Webster's. 2011. "acetabulum" http://smartdefine.org/acetabulum/definitions/1970368 (accessed September 21, 2026). |
| Harvard | Webster's 2011, acetabulum, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/acetabulum/definitions/1970368>. |
| MLA | Webster's. "acetabulum" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/acetabulum/definitions/1970368> |