ischion

1 definition found

ischion - Collaborative International Dictionary of English v.0.48 :

  Ischion \Is"chi*on\, Ischium \Is"chi*um\, n. [L., Gr.
     'ischi`on.]
     1. (Anat.) The ventral and posterior of the three principal
        bones composing either half of the pelvis; seat bone; the
        huckle bone.
        [1913 Webster]
  
     2. (Zool.) One of the pleur[ae] of insects.
        [1913 Webster]