from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. one of the three sections of the hipbone; together these two bones form the front of the pelvis
Sorry, no etymologies found.
Here you see, he would say, there was no injury done to the sensorium; — no pressure of the head against the pelvis; — no propulsion of the cerebrum towards the cerebellum, either by the os pubis on this side, or os coxygis on that; — and pray, what were the happy consequences?