/ Dictionary / Index L lady fern: Meaning and Definition of Find definitions for: la'dy fern" Pronunciation: [key] a fern, Athyrium filix-femina, having delicate, feathery fronds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lady Day ladyfinger Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language