/ Dictionary / Index P patulous: Meaning and Definition of Find definitions for: pat•u•lous Pronunciation: (pach'u-lus), [key] — adj. open; gaping; expanded. spreading, as a tree or its boughs. spreading slightly, as a calyx. bearing the flowers loose or dispersed, as a peduncle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. patulin Patwin Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language