'Ischium' definitions:
Definition of 'ischium'
(from WordNet)
noun
One of the three sections of the hipbone; situated below the ilium [syn: ischium, ischial bone, os ischii]
Definition of 'Ischium'
From: GCIDE
- 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]