vacuum flaskEnglishOxford Dictionary of Englishvacuum flask /ˈvakjuːm flɑːsk , ˈvakjuːm flask/ ▸ noun mainly British English a container that keeps a substance hot or cold by means of a double wall enclosing a vacuum.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
EnglishOxford Dictionary of English