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