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.
Older units have other issues, such as increasingly scarce parts or outdated coolant. Alexis Simmerman, Austin American-Statesman, 3 June 2024 The cooler head is connected through two coolant lines, a fan power lead (to power the pump), and an ARGB lead (to power the head’s decorative lighting). PCMAG, 30 May 2024 The coolant gives up its heat to the open air, given the right difference in temperature. Charles Q. Choi, IEEE Spectrum, 13 June 2024 The Three Mile Island plant was the location of the most serious nuclear meltdown and radiation leak in U.S. history in March 1979, when the loss of water coolant through a faulty valve caused a reactor to overheat. Ryan Browne, CNBC, 16 Oct. 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

Dictionary Entries Near coolant

Cite this Entry

“Coolant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coolant. Accessed 5 Jan. 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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