sphenoid Hear it!

sphenoid definition

sphe·noid (sfēno̵id′)

adjective

  1. wedge-shaped
  2. Anat. designating or of the wedge-shaped compound bones of the skull
Also sphenoidal sphe·noi′·dal

Etymology: ModL sphenoides < Gr sphēnoeides: see sphene & -oid

noun

  1. the sphenoid bone
  2. Mineralogy a wedge-shaped crystal form having four triangular faces

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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