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 On March 28, 1979, the Unit 2 reactor core at the Three Mile Island plant partially melted down when equipment malfunctions, compounded by human operator errors, caused a water pump failure that resulted in a loss of coolant to the reactor, according to the U.S. Nuclear Regulatory Commission. Julia Jacobo, ABC News, 20 Sep. 2024 Most recently, Frank Rubio, another NASA astronaut, had his mission extended from six months to one year in 2023 after the Russian Soyuz spacecraft that was supposed to bring him home sprung a coolant leak. Stephen Clark, Ars Technica, 13 Sep. 2024 In keeping with its eco-ethos, the interior flooring comes from 98% renewables, the sidewalls are also made from recycled materials including PET bottles, and Stadler says that the climate-control system uses an environmentally friendly coolant. New Atlas, 2 Sep. 2024 Wilmore, a bit of a handyman who builds tables and sheds for his church, was tasked with servicing a pair of freezers used to hold research samples as well as refilling the coolant loops in one of the station’s water pumps. Christian Davenport, Washington Post, 26 July 2024 See all Example Sentences for coolant 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'coolant.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 2 Oct. 2024.

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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