/ Dictionary / Index M Mendelssohn: Meaning and Definition of Find definitions for: Men•dels•sohn Pronunciation: (men'dl-sun Ger. men'dul-zōn&sec), [key] — n. (Jacob Ludwig Felix Mendelssohn-Bartholdy), 1809–47, German composer. his grandfather,1729–86, German philosopher. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mendelssohn (Thesaurus) Mendel's second law mender Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language