sackbut

sackbut (săkˈbət) [key], Renaissance name for the slide trombone, probably derived from the old French word sacqueboute, which means "pull-push." The instrument achieved its present form in the 15th cent., the only differences being a narrower bore and a smaller bell. These differences lent the sackbut, sometimes called a posuane, a less mellow tone than its modern counterpart.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on sackbut from Fact Monster:

See more Encyclopedia articles on: Music: Theory, Forms, and Instruments