n. 六孔竖笛

Flageolet \Flag"eo*let`\, n. [F. flageolet, dim. of OF. flaj?l
(as if fr. a LL. flautio;us), of fla["u]te, flahute, F.
fl?te. See {Flute}.] (Mus.)
A small wooden pipe, having six or more holes, and a
mouthpiece inserted at one end. It produces a shrill sound,
softer than of the piccolo flute, and is said to have
superseded the old recorder.

{Flageolet tones} (Mus.), the naturel harmonics or overtones
of stringed instruments.