Ischion
Pronunciation : Is"chi*on, Is"chi*um
Part of Speech : n.
Etymology : [L., Gr.
Definition : 1. (Anat.)
Defn: The ventral and posterior of the three principal bones composing either half of the pelvis; seat bone; the huckle bone.
2. (Zo?l.)
Defn: One of the pleur? of insects.
Source : Webster's Unabridged Dictionary, 1913