懐かい炉ろTop 20000MeaningsNoun1. pocket heater; hand warmer; heater pack (Usually kana)Kanji used懐pocket of nostalgia炉furnacePitch accentかいろUsed in vocabulary懐かい炉ろ灰ばいfuel source for a (pocket) body warmerNounExamples1彼かれはカイロで体からだを暖あたためた。He warmed himself with a pocket heater.