Skull

The skull was the framework of the head in most animals including humanoids. The skull protects the brain and has sockets for housing the eyes. It is part of the skeletal system.

Female Rills found a large skull sexually attractive. (PROSE: Galaxy Four)

The skulls of the headless monks were kept in the Seventh Transept. They were carnivorous and ate anything that came in, from rats to intruders. (TV: The Wedding of River Song)

Faction Paradox wore the skulls of dead Time Lords from another universe. (PROSE: Alien Bodies)

Victorian showmen used to draw the crowds by taking the skull of a cat, glueing it to a fish and calling it a mermaid. The Ninth Doctor compared the Slitheen's Space Pig with this trick while explaining the Space Pig's true nature to Toshiko Sato. (TV: Aliens of London)

The Marshal of Atrios communicated with the Shadow through a skull-shaped device located behind a mirror. (TV: The Armageddon Factor)