Definition of cranium in US English:



  • The skull, especially the part enclosing the brain.

    • ‘The eye is located within the orbital cavity of the skull between the cranium and the facial skeleton.’
    • ‘There were no significant skull fractures and so this really is a case of the brain rattling within the cranium.’
    • ‘As the infection spreads in the temporal bone, it may extend into the cranium and result in cranial nerve palsies.’
    • ‘The bones of the cranium are divided into the skull base and the calvarial vault.’
    • ‘There is also part of another male skull and an immature cranium from a six- or seven-year-old child.’
    skull, brain case
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Late Middle English: via medieval Latin from Greek kranion ‘skull’.