expressĭo, ōnis, f. [exprimo] (postAug.), a pressing or squeezing out.I. In gen.: mellis, Pall. Jun. 7, 3: spiritus, Vitr. 9, 9.—II. In partic. A. In mechanics, a forcing apparatus to raise water, Vitr. 1, 1; 8, 7; cf. 2. expressus.—B. In architect., a projection, i. e. a fillet, listel, Vitr. 4, 4 fin. —C. Of lang., vividness: summā expressione describere, Ambros. de Cain et Abel, 1, 2, 9.
