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ischion |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Ischion \Is"chi*on\, Ischium \Is"chi*um\, n. [L., Gr ?.] 1. (Anat.) The ventral and posterior of the three principal bones composing either half of the pelvis; seat bone; the huckle bone. 2. (Zo["o]l.) One of the pleur[ae] of insects.