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part of a musical or other instrument to which the mouth is applied in using it; as, the mouthpiece of a bugle, or of a tobacco pipe.

A curved wooden horn about three feet long, with a cupped mouthpiece and a bell, used by the Swiss to sound the ranz des vaches and other melodies. Its notes are open harmonics of the tube.

lignite, or on the seashore in many places. It takes a fine polish, and is used for pipe mouthpieces, beads, etc., and as a basis for a fine varnish. By friction, it becomes strongly electric.

A Turkish pipe, usually with a mouthpiece of amber, a stem, four or five feet long and not pliant, of some valuable wood, and a bowl of baked clay.

de reed instrument (Ger. Zinken), of the oboe family. (b) A brass instrument, with cupped mouthpiece, and furnished with valves or pistons, now used in bands, and, in place of the trumpet, in orchestras. See Cornet-à-piston. (c) A certain organ stop or register.

t for office or other similar use, having a sound-magnifying device enabling the ordinary mouthpiece to be dispensed with. Much use has been made of it for overhearing, or for recording, conversations for the purpose of obtaining evidence for use in litigation.

The mouthpiece of a wind instrument.

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 It produces a shrill sound, softer than of the piccolo flute, and is said to have superseded the old recorder.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.

A beak flute, an older form of the flute, played with a mouthpiece resembling a beak, and held like a flageolet.

t, consisting of a long tube twisted into circular folds and gradually expanding from the mouthpiece to the end at which the sound issues; -- called in France cor de chasse. -- French leave, an informal, hasty, or secret departure; esp., the leaving a place without paying one's debts. -- French pie Etym: [French (her…

A principal speaker; one who utters the common opinion; a mouthpiece. Every coffeehouse has some particular statesman belonging to it, who is the mouth of the street where he lives. Addison.

pason (Mus.), a certain stop in an organ, in which the pipes or tubes are formed like the mouthpiece of a flageolet at the end where the wind enters, and are open at the other end. -- Open flank (Fort.), the part of the flank covered by the orillon. -- Open-front furnace (Metal.), a blast furnace having a forehearth.…

A small piece of cane or wood attached to the mouthpiece of certain instruments, and set in vibration by the breath. In the clarinet it is a single fiat reed; in the oboe and bassoon it is double, forming a compressed tube.

One who is the mouthpiece of others; especially, one who presides over, or speaks for, a delibrative assembly, preserving order and regulating the debates; as, the Speaker of the House of Commons, originally, the mouthpiece of the House to address the king; the Speaker of a House of Representatives.…

A nozzle, mouthpiece, or fixture through which the blast is delivered to the interior of a blast furnace, or to the fire of a forge. [Corruptly written also tweer, and twier.] Tuyère arch, the embrasure, in the wall of a blast furnace through which the tuyère enters.