LEMON

I. noun Etymology: Middle English lymon, from Middle French limon, from Medieval Latin limon-, limo, from Arabic laymūn, līmūn, from Persian līmū, līmun Date: 15th century 1. an acid fruit that is botanically a many-seeded pale yellow oblong berry produced by a small thorny citrus tree ( Citrus limon ) and that has a rind from which an aromatic oil is extracted, a tree that bears ~s, one (as an automobile) that is unsatisfactory or defective, II. adjective Date: 1598 of the color ~ yellow, 2. containing ~, having the flavor or scent of ~