refrigerant
noun [ C or U ] uk/rɪˈfrɪdʒ.ə.rənt/ us/rɪˈfrɪdʒ.ə.rənt/
制冷剂，冷冻剂，制冷物质
a chemical substance that can be used to make or keep things cold
Chlorofluorocarbons have been used widely in the production of refrigerants like Freon. 氯氟烃已广泛用于氟利昂等制冷剂的生产。