Definition of 懐炉 (かいろ)
かいろ
                        懐炉
かいろ
kairo
noun
•
                
pocket heater, hand warmer, heater pack(usually kana)
Other readings:
                カイロ
                Related Kanji
| 懐 | pocket, feelings, heart, yearn, miss someone, become attached to, bosom, breast | 
| 炉 | hearth, furnace, kiln, reactor |