sphenoid bone


noun

the large butterfly-shaped compound bone at the base of the skull, containing a protective depression for the pituitary gland

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Medical definitions for sphenoid bone

sphenoid bone

n.

A compound bone with winglike processes, situated at the base of the skull.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.