flue

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A pipe, tube, or channel for conveying hot air, gas, steam, or smoke, as from a furnace or fireplace to a chimney.
2. n. Music An organ pipe sounded by means of a current of air striking a lip in the side of the pipe and causing the air within to vibrate. Also called labial.
3. n. Music The lipped opening in such a pipe.
4. n. A fishing net.

Century Dictionary and Cyclopedia

1. n. A duct for the conveyance of air, smoke, heat, or gases. Specifically— Formerly, a small winding chimney of a furnace carried up into the main chimney.
2. n. A pipe or tube for conveying heat to water in certain kinds of steam-boilers.
3. n. A passage in a wall for the purpose of conducting heated air from one part of a building to another.
4. n. [See etym.] The winding hollow of a sea-shell.
5. n. In organ-building, a flute-pipe as distinguished from a mouth-pipe or reed-pipe.
6. n. The coping of a gable or end-wall of a house, etc.
7. To expand or splay, as the jambs of a window.
8. n. Down or nap; waste downy matter, abounding in spinneries, lint-factories, etc.; downy refuse; fine hair, feathers, flocks of cotton, etc., that cling to clothes.
9. Shallow.
10. n. In whaling, the fluke or barb of a harpoon.
11. n. A money of account of Morocco, of the value of one twenty-fifth of an English penny, or one thirteenth of a cent.
12. n. Influenza.
13. n. A fishing-net, stationary or used as a drag-net.

Wiktionary

1. n. A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).
2. n. An enclosed passageway in which to direct air or other gaseous current along.

GNU Webster's 1913

1. n. An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage.
2. n. A compartment or division of a chimney for conveying flame and smoke to the outer air.
3. n. A passage way for conducting a current of fresh, foul, or heated air from one place to another.
4. n. (Steam Boiler) A pipe or passage for conveying flame and hot gases through surrounding water in a boiler; -- distinguished from a tube which holds water and is surrounded by fire. Small flues are called fire tubes or simply tubes.
5. n. In an organ flue pipe, the opening between the lower lip and the languet.
6. n. Light down, such as rises from cotton, fur, etc.; very fine lint or hair.

WordNet 3.0

1. n. flat bladelike projection on the arm of an anchor
2. n. organ pipe whose tone is produced by air passing across the sharp edge of a fissure or lip
3. n. a conduit to carry off smoke