デュワー瓶びん

noun

Dewar vessel; Dewar flask

A double-walled vacuum-insulated container used to store cryogenic liquids or maintain temperature. Technical term; in everyday contexts, 魔法瓶 (magic bottle) is more common for thermos-like containers.

• 液えき体たい窒ちっ素そはデュワー瓶びんに入いれて保ほ存ぞんする。

  Liquid nitrogen is stored in a Dewar flask.