re·frig·er·ant 
(rĭ-frĭjər-ənt)
(rĭ-frĭjər-ənt)adj.
1. Cooling or freezing; refrigerating.
2. Medicine Reducing fever.
n.
1. A substance, such as air, ammonia, water, or carbon dioxide, used to provide cooling either as the working substance of a refrigerator or by direct absorption of heat.
2. Medicine An agent used to reduce fever.