vacuum flask

• Контейнер, предназначенный для сохранения жидкостей горячими или холодными в течение длительного времени, состоящий из двустенной колбы с вакуумом между стенками для уменьшения теплопередачи.

A container designed to keep liquids hot or cold for extended periods, consisting of a double-walled flask with a vacuum between the walls to reduce heat transfer.

1. Insulated containerB1formal

   A container designed to keep liquids hot or cold by using a vacuum between its walls to reduce heat transfer.

   Термос

   • She poured hot coffee into the vacuum flask before the hike.
   • The vacuum flask kept the soup warm for hours.
   • He always carries a vacuum flask of tea to work.