[ fur-nis ]
/ ˈfɜr nɪs /


a structure or apparatus in which heat may be generated, as for heating houses, smelting ores, or producing steam.
a place characterized by intense heat: The volcano was a seething furnace.
(initial capital letter) Astronomy. the constellation Fornax.

verb (used with object), fur·naced, fur·nac·ing.

to heat (a metal piece) in a furnace.

Origin of furnace

1175–1225; Middle English furneis, furnais < Old French fornais, fournais < Latin fornāc- (stem of fornāx kiln, oven), akin to formus warm


fur·nace·like, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for furnace

British Dictionary definitions for furnace

/ (ˈfɜːnɪs) /


an enclosed chamber in which heat is produced to generate steam, destroy refuse, smelt or refine ores, etc
a very hot or stifling place

Derived forms of furnace

furnace-like, adjective

Word Origin for furnace

C13: from Old French fornais, from Latin fornax oven, furnace; related to Latin formus warm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012