/ Dictionary / Index L Lerna: Meaning and Definition of Find definitions for: Ler•na Pronunciation: (lûr'nu), [key] — n. a marshy region near Argos, Greece: the legendary abode of the Hydra slain by Hercules. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lermontov Lerner Related Content Daily Word Quiz: verdant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language