furnace
Americannoun
-
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.
-
Astronomy. Furnace, the constellation Fornax.
verb (used with object)
noun
-
an enclosed chamber in which heat is produced to generate steam, destroy refuse, smelt or refine ores, etc
-
a very hot or stifling place
Other Word Forms
- furnace-like adjective
- furnacelike adjective
Etymology
Origin of furnace
First recorded in 1175–1225; Middle English furneis, furnais, from Old French fornais, fournais, from Latin fornāc- (stem of fornāx “kiln, oven”), akin to formus “warm”
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In this study, the researchers turned their attention to a less studied source of pollution: wood burning in homes, including furnaces, boilers, fireplaces, and stoves.
From Science Daily
Traders are anticipating a big chunk of U.S. production will become blocked in frozen wells when heating demand is highest, necessitating a huge drawdown of domestic stockpiles to keep furnaces and boilers running.
In a report, RBC’s James McGarragle says the Canadian steelmaker’s shift to electric arc furnace production and improving supply dynamics is setting the stage for a gradual earnings recovery.
The sun blazes through the window in the stairwell, making the whole place feel like a furnace.
From Literature
![]()
Space Forge have sent a microwave-sized factory into orbit, and have demonstrated that its furnace can be switched on and reach temperatures of around 1,000C.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.