/ Dictionary / Index F fern seed: Meaning and Definition of Find definitions for: fern' seed" Pronunciation: [key] the spores of ferns, formerly supposed to have the power to make persons invisible. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fernery ferny Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language