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Medical Definition of Skull base
1. The internal and external base of the cranium: respectively the inner and outer surfaces of the inferior region of the skull. The internal base constitutes the floor of the cranial cavity. (12 Dec 1998)
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1. The internal and external base of the cranium: respectively the inner and outer surfaces of the inferior region of the skull. The internal base constitutes the floor of the cranial cavity. (12 Dec 1998)