/ Dictionary / Index P petiolate: Meaning and Definition of Find definitions for: pet•i•o•late Pronunciation: (pet'ē-u-lāt"), [key] — adj. Bot., Zool. having a petiole or peduncle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. petiolar petiole 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