A. adj. That evacuates or empties (the bowels); cathartic, purgative, evacuant.
1611. Cotgr., Evacuatif, euacuatiue; purgative.
1828. in Webster; and in mod. Dicts.
B. sb. An evacuative medicine; an evacuant.
1656. Ridgley, Pract. Physick, 50. Palliative is made by evacuatives and alteratives.