furnace

noun

fur·​nace ˈfər-nəs How to pronounce furnace (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Heat pumps now outsell gas furnaces in the U.S., due in part to government incentives. Matt Simon / Grist, Quartz, 12 Nov. 2024 Coloradans should also make sure their thermostats are working and turning the furnace on at the correct temperatures so any maintenance that needs to be done can be scheduled before sub-zero temperatures arrive, WireNut said. Lauren Penington, The Denver Post, 24 Oct. 2024 According to Osaka, roughly 60% of American homes are still heated with furnaces fueled by oil, natural gas or propane. Susanne Rust, Los Angeles Times, 22 Oct. 2024 Backed by the funding, and when it is commissioned from the end of 2027, the electric arc furnace will reduce the site's steelmaking carbon emissions by 90%, equivalent to 5 million tonnes of carbon dioxide a year, Tata Steel said on Friday. Reuters, 18 Oct. 2024 See all Example Sentences for furnace 

Word History

Etymology

Middle English fourneyse, fornes, furneis "oven, kiln, furnace," borrowed from Anglo-French furneis, fornays, fornaise (continental Old French forneis —attested once as masculine noun— fornaise, feminine noun), going back to Latin fornāc-, fornāx (also furnāx) "furnace, oven, kiln (for heating baths, smelting metal, firing clay)," from forn-, furn-, base of furnus, fornus "oven for baking" + -āc-, -āx, noun suffix; forn- going back to Indo-European *gwhr̥-no- (whence also Old Irish gorn "piece of burning wood," Old Russian grŭnŭ, gŭrnŭ "cauldron," Russian gorn "furnace, forge," Bosnian-Croatian-Serbian gŕno "coals for heating iron at a smithy," Sanskrit ghṛṇáḥ "heat, ardor"), suffixed derivative of a verbal base *gwher- "become warm" — more at therm

Note: The variation between -or-, the expected outcome of zero grade, and -ur- in Latin has been explained as reflecting a rural/dialectal change of o to u, borrowing from Umbrian, or the result of a sound change of uncertain conditioning; see most recently Nicholas Zair, "The origins of -urC- for expected -orC- in Latin," Glotta, Band 93 (2017), pp. 255-89.

First Known Use

13th century, in the meaning defined above

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

Dictionary Entries Near furnace

Cite this Entry

“Furnace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/furnace. Accessed 1 Dec. 2024.

Kids Definition

furnace

noun
fur·​nace ˈfər-nəs How to pronounce furnace (audio)
: an enclosed structure in which heat is produced (as for heating a house or melting metals)

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