water tuyere

from The Collaborative International Dictionary of English v.0.48

Water tuyere \Wa"ter tu`y[`e]re"\ (w[add]"t[~e]r
   tw[-e]`y[^a]r").
   A tuy[`e]re kept cool by water circulating within a casing.
   It is used for hot blast.
   [1913 Webster]