放ほう熱ねつ器きほうねつきMeanings1nounradiatorA device that dissipates heat, such as a car radiator or a heating radiator in a room.車くるまの放ほう熱ねつ器きが故こ障しょうしたので修しゅう理りに出だした。The car's radiator broke down, so I took it in for repair.冬ふゆは放ほう熱ねつ器きのそばが暖あたたかくて気き持もちいい。In winter, it's warm and pleasant near the radiator.