/ Dictionary / Index P patch reef: Meaning and Definition of Find definitions for: patch' reef" Pronunciation: [key] an isolated coral growth forming a small platform in a lagoon, barrier reef, or atoll. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. patch pocket patchstand Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language