subarcuate fossa

[ sŭb-ärkyōō-ĭt, -āt′ ]

n.

An irregular depression on the rear surface of the petrous portion of the temporal bone, above and a little to the side of the internal ear.

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.