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acetabulum
noun pl. acetabula or acetabulums
- Anat. the cup-shaped socket of the hipbone, into which the head of the thighbone fits
- Zool.
- any suction disc of flukes, leeches, cephalopods, etc.
- the cavity into which an insect's leg fits
Related Forms:
- acetabular adjective
See acetabulum in American Heritage Dictionary 4
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