fur·​nace | \ ˈfər-nəs How to pronounce furnace (audio) \

Definition of furnace

: an enclosed structure in which heat is produced (as for heating a house or for reducing ore)

Examples of furnace in a Sentence

Recent Examples on the Web Large quantities of natural gas liquids like ethane and propane are fed into enormous furnaces and heated to extremely high temperatures, creating smaller hydrocarbon molecules that can be separated and turned into different plastic products. Benjamin Storrow, Scientific American, "Plastics Plants Are Poised to Be the Next Big Carbon Superpolluters," 24 Jan. 2020 Authorities shut down the furnace and evacuated all three homes, Maggiolo said, displacing 11 people whose names have not been released. Washington Post, "Local Digest: Gas leak in Northwest Washington displaces families," 25 Dec. 2019 United Steelworkers District 7 Director Mike Millsap said the leak was from a massive pipe that brings Lake Michigan water into the mill to cool furnaces and other steel-making equipment. USA TODAY, "Rosa Parks statue, newborn polar bear cub, quake rocks Oregon: News from around our 50 states," 2 Dec. 2019 Secondly, patrons won’t have to walk through a storage area and employee break room, maneuver past a water heater and furnace and sidestep a box of cleaning supplies to reach them. Mary Divine, Twin Cities, "Washington County: Valley Library to move to new, bigger space," 30 Nov. 2019 Sandbags and door barriers are deployed when floods threaten, and its water heater, furnace and other mechanical equipment have been moved from the cellar to the first floor. Cornelia Dean, New York Times, "‘We Cannot Save Everything’: A Historic Neighborhood Confronts Rising Seas," 8 July 2019 This is a good time to attend to household maintenance like cleaning the furnace filters. Magi Helena, oregonlive, "Horoscope for Jan. 4, 2020: Aries, look your best; Capricorn, time to get organized," 4 Jan. 2020 According to folklore, the skeleton belonged to a slave Master had killed by tossing him alive into one of the iron furnaces. Kevin Dayhoff, baltimoresun.com/maryland/carroll, "Dayhoff: Halloween means parade in Westminster, re-telling of ghost stories haunting Carroll County," 18 Oct. 2019 Since Trump announced the tariffs 16 months ago, U.S. Steel has lost almost 70% of its market value, or $5.5 billion, and idled two furnaces in mid-June that couldn’t be run profitably at the lowest prices since 2016. latimes.com, "The Trump tariff twist that’s cost U.S. Steel $5.5 billion," 8 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'furnace.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of furnace

13th century, in the meaning defined above

History and Etymology for furnace

Middle English furnas, from Anglo-French forneise, from Latin fornac-, fornax; akin to Latin formus warm — more at therm

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Time Traveler for furnace

Time Traveler

The first known use of furnace was in the 13th century

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Statistics for furnace

Last Updated

12 Feb 2020

Cite this Entry

“Furnace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/furnace. Accessed 21 Feb. 2020.

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More Definitions for furnace


How to pronounce furnace (audio)

English Language Learners Definition of furnace

: one for melting metals
chiefly US : one for heating a building or apartment


fur·​nace | \ ˈfər-nəs How to pronounce furnace (audio) \

Kids Definition of furnace

: an enclosed structure in which heat is produced (as for heating a house or melting metals)

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More from Merriam-Webster on furnace

Spanish Central: Translation of furnace

Nglish: Translation of furnace for Spanish Speakers

Britannica English: Translation of furnace for Arabic Speakers

Britannica.com: Encyclopedia article about furnace

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