Tuyere \Tu`y[`e]re"\, n. [F.; akin to tuyau a pipe; of Teutonic
origin. Cf. {Tweer}, {Tewel}.]
A nozzle, mouthpiece, or fixture through which the blast is
delivered to the interior of a blast furnace, or to the fire
of a forge. [Corruptly written also {tweer}, and {twier}.]
[1913 Webster]
{Tuy[`e]re arch}, the embrasure, in the wall of a blast
furnace through which the tuy[`e]re enters.
[1913 Webster]