| NOUN | body | acetabulum, cotyloid cavity | the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint |
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| Meaning | The cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint. | |
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| Synonym | cotyloid cavity | |
| Part of | hipbone, innominate bone | large flaring bone forming one half of the pelvis |
| Broader | socket | A bony hollow into which a structure fits |
| Adjectives | acetabular | of the cup-shaped socket that receives the head of the thigh bone |
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