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The pipe, nozzle, or other opening through which air is forced into a blast furnace or forge to facilitate combustion.

[French, from Middle French, alteration (with -ière, denominal suffix used to make names for useful objects) of tuyau, pipe, from Old French tuyau, hollow stem, pipe, from early Old French tudel : *tud, hollow stem, pipe (of Frankish origin; akin to Old English thēota, pipe, channel, from thēotan, to howl, make a rushing sound, from Germanic theutan, probably of imitative origin) + -el, dimininutive suffix (from Latin -illus).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈtwiːɛə; ˈtwaɪə; French tyjɛr) or


(Metallurgy) a water-cooled nozzle through which air is blown into a cupola, blast furnace, or forge
[C18: from French, from tuyau pipe, from Old French tuel, probably of Germanic origin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or tu•yer

(twiˈyɛər, tu-)

an opening through which the blast of air enters a blast furnace, cupola, forge, or the like, to facilitate combustion.
[1665–75; < French, derivative of tuyau pipe < Frankish *thūta; compare Frisian tute pipe, Gothic thut-haurn trumpet]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
500 BCE--in particular mining and smelting, which tend to be concentrated in metallogenic upland areas with substantial forest reserves--offers a significant window of interpretive opportunity due to the accumulation of substantial and durable deposits of high-temperature waste-products like technical ceramics (crucibles, furnaces, tuyeres and moulds) and slag.
Orellana, "Fluid dynamics in a teniente type copper converter model with one and two tuyeres," Advances in Mechanical Engineering, no.
There are many plans out there for the traditional side-blast forge and more modern duck's-nest tuyeres, and all work well with charcoal.
If the tuyeres through which air is injected into the furnace melt down to a point where the molten metal threatens to flow into the air cavity, the first and second helpers mend the nozzle by covering and stoppering it with clay.
Together with gradual improvements in the design and construction of smelters and tuyeres (durable ceramic blowtube tips) that we have documented over the span of some 500 years from the beginning of the Middle Sican (Shimada and Merkel 1991), we believe that, over the same time span, Sican metallurgists refined the nascent co-smelting technology inherited from their earlier Moche counterparts.
* It has 36 tuyeres (pipes) which allow air to be blown into the furnace and four tap holes for removing the iron out of the furnace.
What if the company could install an entirely new melting system that would satisfy its environmental needs while at the same time saving it money by eliminating the scrubber system, water cooled tuyeres and permits associated with the cupola?
Economic savings can be realized in blast furnaces by having a single particle dispenser and a suspension flow divider serving all coal feed injection tuyeres rather than separate dispensers for each one.
"[TEXT NOT REPRODUCIBLE IN ASCII.] Tuyeres, and Kiln Firing Supports," Hesperia 61, pp.