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1. A whistlelike mouthpiece for certain wind instruments, such as a recorder or flageolet, that channels the breath toward the sounding edge of a side opening.
2. An object similar to a fipple in an organ pipe.
1. (Instruments) a wooden plug forming a flue in the end of a pipe, as the mouthpiece of a recorder
2. (Instruments) a similar device in an organ pipe with a flutelike tone
[C17: of unknown origin]
a plug stopping the upper end of a pipe, as a recorder or a whistle, and having a narrow slit through which the player blows.
[1620–30; of uncertain origin]