comˈpoundress [f. compounder: see -ess.] A female compounder: †a. that settles quarrels (obs.); b. that compounds mixtures. 1640Howell Vocal Forrest 9 Arbitratrix and compoundress of any quarrell that may intervene.1844Blackw. Mag. LVI. 768 We..tasted it out of courtesy to the fair compoundress.