noun

• A small domed cap that covers the area from the forehead to just above the back of the neck.
• A yarmulke-like hat worn as an element of ghetto fashion.
• (anatomy) The calvaria, the top part of the skull, covering the cranial cavity containing the brain.
• (botany) Any of several species of flowering plants of the genus Scutellaria, in the Lamiaceae family.
• (historical) A torture device for compressing the skull.