genu
  膝
  ge·nu /ˈʤɪˌnu, ˈʤɛn(j)u/ 名詞
  (複genua)膝,膝節
  Ge·nu n.; pl.  Genua   Anat. (a) The knee. (b) The kneelike bend, in the anterior part of the callosum of the brain.
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  genu
       n : hinge joint in the human leg connecting the tibia and fibula
           with the femur and protected in front by the patella
           [syn: knee, knee joint, articulatio genus]
       [also: genua (pl)]