: 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
Amanda Wallace, USA Today, 9 July 2025
Many units still use refrigerant gases that produce a planetary warming effect that is thousands of times that of a similar amount of CO2.
—Bryan Walsh, Vox, 7 Dec. 2018
Quartz Intelligence Newsroom, Quartz, 12 Mar. 2025
But vapor compression still frequently relies on environmentally harmful chemical refrigerants.
—Andrew Paul, Popular Science, 30 Jan. 2025
See All Example Sentences for refrigerant
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Adjective
Check the refrigerant level and top it up if necessary using a DIY refrigerant kit.
—Amanda Wallace, USA Today, 9 July 2025
Many units still use refrigerant gases that produce a planetary warming effect that is thousands of times that of a similar amount of CO2.
—Bryan Walsh, Vox, 7 Dec. 2018
Noun
The company's business is subject to seasonal variations, with peak sales of refrigerants occurring in the first nine months of each year.
—Quartz Intelligence Newsroom, Quartz, 12 Mar. 2025
But vapor compression still frequently relies on environmentally harmful chemical refrigerants.
—Andrew Paul, Popular Science, 30 Jan. 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 16 Jul. 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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