Source : Webster's Revised Unabridged Dictionary (1913)

Kiln \Kiln\, n. [OE. kilne, kulne, AS. cyln, cylen; akin to
   Icel. kylna; prob. from the same source as coal. See {Coal}.]
   1. A large stove or oven; a furnace of brick or stone, or a
      heated chamber, for the purpose of hardening, burning, or
      drying anything; as, a kiln for baking or hardening
      earthen vessels; a kiln for drying grain, meal, lumber,
      etc.; a kiln for calcining limestone.

   2. A furnace for burning bricks; a brickkiln.

Source : WordNet®

kiln
     n : a large oven for firing or burning or drying such things as
         porcelain or bricks