/ Dictionary / Index L Lebesgue: Meaning and Definition of Find definitions for: Le•besgue Pronunciation: (lu-beg'), [key] 1875–1941, French mathematician. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lebes Lebesgue integral 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