/ Dictionary / Index L Lassalle: Meaning and Definition of Find definitions for: Las•salle Pronunciation: (lu-sal' Ger. lä-säl'), [key] 1825–64, German socialist and writer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lassa fever Lassen Peak Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language