Meaning of acetabulum

ac•e•tab•u•lum

Pronunciation: (as"i-tab'yu-lum), [key]
— pl. -la
  1. the socket in the hipbone that receives the head of the thighbone. See illus. under
  2. any of the suction appendages of a leech, octopus, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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