lemon
1. lem.on \'lem-*n\ n [ME lymon, fr. MF limon, fr. ML limon-, limo, fr. Ar Xlaymu-n 1a: an acid fruit that is botanically a many-seeded pale yellow oblong berr y 1b: the stout thorny tree (Citrus limon) that bears this fruit 2: DUD, FAILURE 2. lemon aj 1a: containing lemon 1b: having the flavor or scent of lemon 2: of the color lemon yellow