flue definition by Webster's New World
- a tube, pipe, or shaft for the passage of smoke, hot air, exhaust fumes, etc., esp. in a chimney
Origin: ME, mouthpiece of a hunting horn
- a flue pipe in an organ
- the opening or passage for air in such a flue pipe
Origin: ; from uncertain or unknown; perhaps Old French fluie, a flowing, stream
Origin: altered ; from uncertain or unknown; perhaps fluke
Origin: ; from Flemish vluwe ; from French velu, woolly ; from Vulgar Latin villutus, shaggy ; from Classical Latin villus, shaggy hair
Origin: Middle English flew ; from Middle Dutch vluwe
flue definition by American Heritage Dictionary
- A pipe, tube, or channel for conveying hot air, gas, steam, or smoke, as from a furnace or fireplace to a chimney.
- Music a. 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.b. The lipped opening in such a pipe.
Origin: Origin unknown.
Origin: Middle English, from Middle Dutch vlūwe; see pleu- in Indo-European roots.