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Cranium Meaning and Definition in Dictionary

Definitions from Wordnet 2.0

  • the part of the skull that encloses the brain

Definitions from Wiktionary

  • the part of the skull that encloses the brain

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Cranium Meaning and Definition in Wikipedia

A skull, or cranium, is a set of bones that make up the head of a vertebrate and keep in place all body parts in the head. Its hard bones keeps the brain safe. Inside the skull are air pockets called sinuses, which act like cushions for the brain. When you have a headache in your forehead, it is usually because the sinuses are filled with fluid due to allergies.

In humans, the adult skull is normally made up of 28 bones. A skull is also used as a symbol of poison or death when used with crossbones, or of piracy.

A human skull, seen from one side

A hippopotamus' skull

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