Examples of coolant in a Sentence
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Replace coolant after the first 11 years or 137,500miles and every six years or 75,000 miles thereafter.
—
Hartford Courant, 20 Feb. 2026
Tried-and-true, old-school nuclear plants typically function with light-water reactors—using ordinary water both to create pressure and serve as the reactor’s coolant.
—Jordan Blum, Fortune, 7 Feb. 2026
According to The South China Morning Post (SCMP), this new process is not a new refrigerant or magic coolant.
—Christopher McFadden, Interesting Engineering, 1 Feb. 2026
Then hydrogen leaks arose during the third rehearsal, which led to NASA not only changing the way in which liquid hydrogen is loaded, but also modifying the ground umbilical plates that send power, coolant, fuel and communications to the rocket, according to Blackwell-Thompson.
—Elizabeth Howell, Space.com, 23 Jan. 2026
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Hartford Courant, 20 Feb. 2026
Tried-and-true, old-school nuclear plants typically function with light-water reactors—using ordinary water both to create pressure and serve as the reactor’s coolant.
—Jordan Blum, Fortune, 7 Feb. 2026
According to The South China Morning Post (SCMP), this new process is not a new refrigerant or magic coolant.
—Christopher McFadden, Interesting Engineering, 1 Feb. 2026
Then hydrogen leaks arose during the third rehearsal, which led to NASA not only changing the way in which liquid hydrogen is loaded, but also modifying the ground umbilical plates that send power, coolant, fuel and communications to the rocket, according to Blackwell-Thompson.
—Elizabeth Howell, Space.com, 23 Jan. 2026
See All Example Sentences for coolant
Cite this Entry
“Coolant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coolant. Accessed 23 Feb. 2026.
Copy CitationKids Definition
coolant
noun
cool·ant
ˈkü-lənt 
: a usually fluid cooling substance
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