/ Dictionary / Index L lahar: Meaning and Definition of Find definitions for: la•har Pronunciation: (lä'här), [key] — n. Geol. a landslide of wet volcanic debris on the side of a volcano. the deposit left by such a landslide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lahar (Thesaurus) La Habra lah-di-dah Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language