ˈsaxotromba [Formed as saxophone n. + It.tromba trumpet.] (See quot. 1883.) 1856[see sax-horn].1883Grove's Dict.Mus. III. 232/1 In 1845 he [A. Sax] took out a patent..for a family of cylinder instruments called Saxo-trombas, intermediate between the Saxhorn and the cylinder trumpet.