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Flt. Sgt.
flu
flub
flucloxacillin
fluconazole
fluctuate
flucytosine
fludrocortisone
flue
flue-cure
flue gas
flue pipe
flue stop
fluellin
fluence
fluent
fluey
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flue

flue [ floo ] (plural flues)


noun 
Definition:
 
1. smoke or heat outlet: a shaft, tube, or pipe used as an outlet to carry smoke, gas, or heat, e.g. from a fireplace or furnace

2. music type of organ pipe: an organ pipe in which the sound is produced by passing air across an opening with a lip

3. music opening on organ pipe: the lipped opening on an organ pipe that initiates vibrations and sound when air passes across it

[15th century. Origin ?]

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