Oast n. : A kiln to dry hops or malt; a cockle.

Example:
How has Kentucky economy changed in the Oast 10 or 20 years?

Taxonomy
oasts, hops, kilns, Oast House, roofs, bricks, oast houses, Farm, cowl, stowage, conversions, floors, Kent, timber, Brick kiln, Herefordshire, ragstone, Kentish dialect.

Defination from the web:
oast house is that at Cranbrook near Tunbridge Wells which dates to 1750 but the process is documented from soon after the ... Hops are today dried industrially and the many oast houses on farms have now been converted into dwellings. ...