acetabulum









acetabulum


< /ˌæs ɪˈtæb yə lə/.

  1. Anatomy. the socket in the hipbone that receives the head of the thighbone.
  2. Zoology. any of the suction appendages of a leech, octopus, etc.

noun plural -la (-lə)

  1. the deep cuplike cavity on the side of the hipbone that receives the head of the thighbone
  2. a round muscular sucker in flatworms, leeches, and cephalopod molluscs
  3. the aperture in the thorax of an insect that holds the leg

n. pl. ac•e•tab•u•la (-lə)

  1. The cup-shaped cavity at the base of the hipbone into which the ball-shaped head of the femur fits.cotyloid cavity

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