/ Dictionary / Index L Leibniz: Meaning and Definition of Find definitions for: Leib•niz Pronunciation: (līb'nits Ger. līp'nits), [key] 1646–1716, German philosopher, writer, and mathematician. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: leibniz (Thesaurus) lei Leibowitz Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language