お冷[ohiya] cold (drinking) water
花冷え[hanabie] chilly spring weather
寒冷[kanrei] cold
興冷め[kyouzame] kill-joy
空冷[kuurei] air cooling

空冷式[kuureishiki] air-cooled
水冷式[suireishiki] water-cooled
頭を冷やす[atamawohiyasu] to cool down one's anger
保冷[horei] keep cool

ニュース媒体[nyuusubaitai] news media
印刷媒体[insatsubaitai] print media
記憶媒体[kiokubaitai] storage medium
触媒[shokubai] catalyst
触媒作用[shokubaisayou] catalytic action

超媒体[choubaitai] hypermedia
媒介[baikai] intermediary
媒介物[baikaibutsu] medium
媒質[baishitsu] medium