coolant

noun

cool·​ant ˈkü-lənt How to pronounce coolant (audio)
: a usually fluid cooling agent

Examples of coolant 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.
The toughest part involved fishing some stiff, thick wire through a space between the coolant tank and a metal bracket (which the manual warned about). Ars Technica, 17 Mar. 2025 When its coolant ran out in September 2010, NASA kept WISE going for a few months in a new guise — NEOWISE — to hunt for near-Earth objects (NEOs) that are visible at the warmer infrared wavelengths that didn't require coolant for the spacecraft to detect them. Keith Cooper, Space.com, 13 Feb. 2025 This mitigates coolant losses and other risks from elevated system pressures. IEEE Spectrum, 9 Jan. 2025 Major sources of ozone-depleting CFCs include coolants used in refrigerators and air conditioners, along with aerosols found in products like hair spray, antiperspirants and spray paints. Tom Howarth follow, Newsweek, 1 Nov. 2024 See All Example Sentences for coolant

Word History

First Known Use

1915, in the meaning defined above

Time Traveler
The first known use of coolant was in 1915

Browse Nearby Words

Cite this Entry

“Coolant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coolant. Accessed 8 Apr. 2025.

Kids Definition

coolant

noun
cool·​ant ˈkü-lənt How to pronounce coolant (audio)
: a usually fluid cooling substance

More from Merriam-Webster on coolant

Last Updated: - Updated example sentences
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