Pronunciation: (skul), [key]
1. the bony framework of the head, enclosing the brain and supporting the face; the skeleton of the head.
2. the head as the center of knowledge and understanding; mind: to get literature's great ideas through our skulls.
3. Armor.the part of a helmet that covers the top of the head.
4. out of one's skull, Slang.crazy; demented.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.