Often shortened to: sax a keyed wind instrument of mellow tone colour, used mainly in jazz and dance music. It is made in various sizes, has a conical bore, and a single reed
[C19: named after Adolphe Sax (1814--94), Belgian musical-instrument maker, who invented it (1846)]
1851, from Fr. saxophone, named for Antoine Joseph "Adolphe" Sax (1814-1894), Belgian instrument maker who devised it c.1840 + Gk. -phonos "voiced, sounding." Shortened form sax is from 1923. His father, Charles Joseph (1791-1865) invented the less popular saxhorn (1845).
A wind instrument classified as a woodwind because it is played with a reed, although it is usually made of metal. Saxophones appear mainly in jazz, dance, and military bands. They are made in several ranges, from soprano to bass.