| acetabulum | (n) the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint, Syn. cotyloid cavity |
| 寛骨臼 | [かんこつきゅう, kankotsukyuu] (n) acetabulum; cotyloid cavity [Add to Longdo] |
| 髀臼 | [ひきゅう, hikyuu] (n) (See 寛骨臼) acetabulum; cotyloid cavity [Add to Longdo] |