Lewis & Short

rescīssōrĭus, a, um, adj. [id.; cf. rescissio]; in jurid. Lat., of or pertaining to abrogating, revoking, or rescinding, rescissory: actio, Dig. 4, 6, 28 fin.
As subst.: rescissōrĭa, ae, f., = rescissoria actio, Dig. 39, 5, 21.