/ Dictionary / Index P petrol: Meaning and Definition of Find definitions for: pet•rol Pronunciation: (pe'trul), [key] — n., v., -rolled, -rol•ling. —n. gasoline. petroleum. —v.t. to clean with gasoline. petrol. Pronunciation: [key] petrology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: petrol (Thesaurus) petrography petrolatum 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