(n.) A name given to a numerous family of brass wind instruments with valves, invented by Antoine Joseph Adolphe Sax (known as Adolphe Sax), of Belgium and Paris, and much used in military bands and in orchestras.

alpenhorn alphorn althorn alto horn ballad horn baritone bass horn brass choir brass wind brass-wind instrument brasses bugle bugle horn clarion cornet cornet-a-pistons corno di caccia cornopean double-bell euphonium euphonium helicon horn hunting horn key trumpet lituus lur mellophone ophicleide orchestral horn pocket trumpet post horn sackbut saxtuba serpent slide trombone sliphorn sousaphone tenor tuba tromba trombone trumpet tuba valve trombone valve trumpet