refrigerant
noun/rɪˈfrɪdʒərənt/
/rɪˈfrɪdʒərənt/
[countable, uncountable]- a chemical substance used in the refrigeration processWord Originlate 16th cent. (denoting a substance that cools or allays fever): from French réfrigérant or Latin refrigerant- ‘making cool’, from the verb refrigerare.
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refrigerant