Lewis & Short

tortīvus, a, um, adj. [torqueo], pressed out, squeezed out (by subjecting the grapes a second time to the press): mustum, Cato, R. R. 23, 4; id. ap. Plin. 14, 21, 25, § 130; Col. 12, 36; Cael. Aur. Acut. 3, 21, 217.