petrous: Meaning and Definition of

pet•rous

Pronunciation: (pe'trus, pē'-), [key]
— adj.
  1. noting or pertaining to the hard dense portion of the temporal bone, containing the internal auditory organs; petrosal.
  2. like stone, esp. in hardness; stony; rocky.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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