Hypertext Webster Gateway: "ischium"
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.
From WordNet (r) 1.7 (wn)
ischium
n : one of the three sections of the hipbone; situated below the
ilium [syn: {ischial bone}, {os ischii}]
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