acetabulum
(ac-e-tab-u-lum)
5 syllables
Definition
noun. the cupshaped hollow in the hipbone into which the head of the femur fits to form a ballandsocket joint
Example Sentence
I fell and broke my acetabulum.
Synonyms
cotyloid cavity; hipbone socket; socket of the hipbone
Antonyms
arm muscle
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acetabulum
