/ Dictionary / Index L Leidy: Meaning and Definition of Find definitions for: Lei•dy Pronunciation: (lī'dē), [key] 1823–91, U.S. paleontologist, parasitologist, and anatomist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Leiden Leif 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