/ Dictionary / Index P Petra: Meaning and Definition of Find definitions for: Pe•tra Pronunciation: (pē'tru, pe'-), [key] — n. an ancient city in SW Jordan: ruined structures carved out of varicolored stratified rock; capital of the Nabataeans and Edomites. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. petr- Petrarch Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language