refrigerant
adj.
1590s, originally in medicine; from Latin refrigerans, present participle of refrigerare "make cool or cold, to cool down" (see refrigeration). As a noun from 1670s.
〔李〕[re-;friger;-antn.] n.致冷剂，冷冻剂 ←frig,friger (L frigidus)=cold 冷的
〔蒋〕[frig冷，-ant形容词后缀兼名词后缀] 致冷的，消热的，致冷剂，清凉剂，退热药