The skeleton of the head of a vertebrate animal, including the brain case, or cranium, and the bones and cartilages of the face and mouth. See Illusts. of Carnivora, of Facial angles under Facial, and of Skeleton, in Appendix.
The head or brain; the seat of intelligence; mind.
We're all just bags of bones and muscle and hormones; I'll never understand what makes our minds do the things we do. It's like that statue of the monkey holding a skull. We're trying to use a thing we don't understand to understand ourselves. Meshell Ndegeocello
There is great treasure there behind our skull and this is true about all of us. This little treasure has great, great powers, and I would say we only have learnt a very, very small part of what it can do. Isaac Bashevis Singer
The competent programmer is fully aware of the limited size of his own skull. He therefore approaches his task with full humility, and avoids clever tricks like the plague. Edsger Dijkstra