n. adductors (-torz) or adductores (ad-uk-tō′ rēz). In anatomy and zoology, that which adducts; specifically, the name of several muscles which draw certain parts to or toward one common center or median line: the opposite of abductor.Of or pertaining to an adductor; having the function of adducting; adducent: as, the adductor muscles of the thigh: opposed to abductor.In malacology, the muscles which draw together or close the valves in bivalve mollusks. See cut under Waldheimia.