petrosal Hear it!

petrosal definition

pe·tro·sal (pə trō′səl)

adjective

  1. very hard or stony

  2. Etymology: < ModL petrosa < ML (os) petrosus, petrosal (bone)

    Anat. of or located near the petrous part of the temporal bone

Etymology: < L petrosus, rocky: see petrous & -al

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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