/ Dictionary / Index S shield fern: Meaning and Definition of Find definitions for: shield' fern" Pronunciation: [key] any of numerous ferns of the genera Dryopteris and Polystichum, having shield-shaped indusia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. shield bearer shield law Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language