Source : Webster's Revised Unabridged Dictionary (1913)

Teache \Teache\, n. [Cf. Amer. Sp. tacha, tacho.] (Sugar Manuf.)
   Any, esp. the last, of the series of boilers or evaporating
   pans.

Teache \Teache\, n. [Cf. Ir. teaghaim, Gael. teasaich, to heat.]
   (Sugar Works)
   One of the series of boilers in which the cane juice is
   treated in making sugar; especially, the last boiler of the
   series. --Ure.