/ Dictionary / Index P Petaluma: Meaning and Definition of Find definitions for: Pet•a•lu•ma Pronunciation: (pet"l-'mu), [key] — n. a city in W California, N of San Francisco. 33,834. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. petalous pétanque Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language