Real Dictionary

kiln
countable noun: A kiln is an oven that is used to bake pottery and bricks in order to make them hard.

kiln in American English
a furnace or oven for drying, burning, or baking something, as bricks, grain, or pottery
to dry, burn, or bake in a kiln
noun: a furnace or oven for burning, baking, or drying something, esp. one for firing pottery, calcining limestone, or baking bricks
transitive verb: to burn, bake, or treat in a kiln

kiln in British English
noun: a large oven for burning, drying, or processing something, such as porcelain or bricks
verb: to fire or process in a kiln

kiln in Chemical Engineering
noun: A kiln is a heated reactor which sustains a reaction between a gas and a solid when there is no catalyst.