noun🔗Share보온병A bottle, flask or similar vessel having a vacuum between its inner and outer silvered walls; designed to maintain the temperature of its contents"I packed hot soup in a thermos so it would stay warm for my lunch at school. "나는 학교에서 점심으로 먹을 수 있도록 뜨거운 수프를 보온병에 담아 따뜻하게 유지했다.utilityitemthingChat with AIVocabulary GamePractice Reading
