魔ま法ほう瓶びんまほうびんCommon word›Freq.FrequencyTop 50,000じ字FuriganaMeanings1nounthermos; vacuum flaskA container that keeps drinks hot or cold using a vacuum-insulated double wall. The term is neutral and widely understood.寒さむい日ひは魔ま法ほう瓶びんに熱あついお