Flue /(flū)/

Flue

n.
  1. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage (Steam Boiler)
  2. In an organ flue pipe, the opening between the lower lip and the languet.

Phrases & Compounds

Flue boiler
See under Boiler.
Flue bridge
the separating low wall between the flues and the laboratory of a reverberatory furnace.
Flue plate
a plate to which the ends of the flues are fastened; -- called also flue sheet, tube sheet, and tube plate.
Flue surface
the aggregate surface of flues exposed to flame or the hot gases.

Flue

n.
  1. Light down, such as rises from cotton, fur, etc.; very fine lint or hair.