Breadcrumb Home > Dictionary > Index L Lassen Peak: Meaning and Definition of Find definitions for: Las'sen Peak' Pronunciation: (las'un), [key] an active volcano in N California, in the S Cascade Range. 10,465 ft. (3190 m). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lassalle Lassen Volcanic National Park TrendingHere are the facts and trivia that people are buzzing about. Did Birds Evolve from Dinosaurs? The Twelve Dancing Princesses Current Events This Week: January 2023 African Americans by the Numbers Andersen's Fairy Tales: Contents The Celtic Twilight: A Teller of Tales ✖ Related Content Daily Word Quiz: limpid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language