: 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
Olivia Evans, The Courier-Journal, 26 Aug. 2025
The chemicals and materials businesses, including sustainable refrigerants, chemicals needed to make semiconductors and materials for carbon capture.
—Jim Cramer, CNBC, 27 July 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
The investment shifts production from Forane 134a, a refrigerant being phased out by the EPA, to Forane 1233zd, a more environmentally friendly alternative.
—Olivia Evans, The Courier-Journal, 26 Aug. 2025
The chemicals and materials businesses, including sustainable refrigerants, chemicals needed to make semiconductors and materials for carbon capture.
—Jim Cramer, CNBC, 27 July 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 Sep. 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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