Also found in: Dictionary, Thesaurus, Wikipedia.
any one of a family of wind instruments with mouthpieces, devised by A. Sax. Saxhorns are distinguished by their uniform dimensions and shape (similar to that of a tuba). The saxhorn family originally numbered seven members; it later included nine instruments, ranging from the sopranino to the subcontrabass. Saxhorns are often designated alto, tenor and baritone, which are the three varieties of most brass instruments.