Entry 1 sense Webster, 1913 Refrigeration /(-?"sh?n)/ · Re·frig·er·a·tion · IPA /rɪfrˌɪdʒərˈeɪʃən/ 01 n. The act or process of refrigerating or cooling, or the state of being cooled. 1. The act or process of refrigerating or cooling, or the state of being cooled.