/ Dictionary / Index L Liouville: Meaning and Definition of Find definitions for: Liou•ville Pronunciation: (ly-vēl' Eng. lē&sec-vil'), [key] 1809–82, French mathematician. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lion's share Liouville's theorem Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language