: a refrigerant agent or agency: such as
a
: a medication for reducing body heat
b
: a substance used in refrigeration
Examples of refrigerant in a Sentence
Recent Examples on the Web
Ni Tao, Interesting Engineering, 19 Aug. 2025
Check the refrigerant level and top it up if necessary using a DIY refrigerant kit.
—Amanda Wallace, USA Today, 9 July 2025
Sara Kiley Watson, Popular Science, 2 Oct. 2025
So the company is aiming to lower the global warming potential of those refrigerants.
—Lauren Giella, MSNBC Newsweek, 24 Sep. 2025
See All Example Sentences for refrigerant
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Adjective
Consistent refrigerant supply is also another issue that engineers need to grapple with.
—Ni Tao, Interesting Engineering, 19 Aug. 2025
Check the refrigerant level and top it up if necessary using a DIY refrigerant kit.
—Amanda Wallace, USA Today, 9 July 2025
Noun
Even when the outside temperature is a blustery 30 degrees Fahrenheit, heat still moves into a refrigerant that sits at 0 degrees Fahrenheit.
—Sara Kiley Watson, Popular Science, 2 Oct. 2025
So the company is aiming to lower the global warming potential of those refrigerants.
—Lauren Giella, MSNBC Newsweek, 24 Sep. 2025
See All Example Sentences for refrigerant
Cite this Entry
“Refrigerant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/refrigerant. Accessed 10 Oct. 2025.
Copy CitationMedical Definition
refrigerant
1 of 2 adjective
re·frig·er·ant
ri-ˈfrij-(ə-)rənt 
: allaying heat or fever
refrigerant
2 of 2 noun
: a medicine or an application for allaying fever or its symptoms
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