/ Dictionary / Index G grape fern: Meaning and Definition of Find definitions for: grape' fern" Pronunciation: [key] any of several ferns of the genus Botrychium, comprising several species having grapelike clusters of sporangia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grape family grapefruit Related Content Daily Word Quiz: dispel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language