サーモス

noun

thermos; vacuum flask

Trademarked brand name often used generically for vacuum-insulated flasks and bottles, similar to 魔法瓶 (まほうびん).

See also: 魔法瓶 (まほうびん)

• 寒さむい日ひはサーモスに温あたたかいお茶ちゃを入いれて持もっていく。

  On cold days, I put hot tea in a thermos and take it with me.

• このサーモスは保ほ温おん性せいがとても高たかい。

  This thermos has excellent heat retention.