Breadcrumb Home > Dictionary > Index P petrosal: Meaning and Definition of Find definitions for: pe•tro•sal Pronunciation: (pi-trō'sul), [key] — adj. petrous; hard. of or pertaining to the petrous portion of the temporal bone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. petropower Petrouchka* TrendingHere are the facts and trivia that people are buzzing about. Who's Who in the "Lord of the Rings" Roman Catholic Church Hierarchy Current Events This Week: March 2023 42 Top Western Movie Quotes Slaves in the Family User's Guide to Environmental Language ✖ Related Content Daily Word Quiz: wastrel Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language