/ Dictionary / Index S seed leaf: Meaning and Definition of Find definitions for: seed' leaf" Pronunciation: [key] — Bot. Bot. a cotyledon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. seed fern seedling Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language