魔法瓶(まほうびん)

まほうびん
noun
thermos; vacuum flask
1. thermos; vacuum flask; insulated bottle
A container with a vacuum-insulated interior that keeps beverages hot or cold. Literally 'magic bottle.'
魔法瓶(まほうびん)にお茶(ちゃ)を入(い)れる。
Pour tea into a thermos.
この魔法瓶(まほうびん)は六時間(ろくじかん)温(あたた)かさが続(つづ)く。
This thermos keeps things warm for six hours.
冬(ふゆ)のハイキングには魔法瓶(まほうびん)に温(あたた)かいスープを入(い)れて持(も)っていく。
For winter hikes, I put warm soup in a thermos and bring it along.

Literally "magic bottle" (魔法(まほう) + 瓶(びん)), named because the vacuum insulation seemed magical when the technology was new.

USAGE:
While 魔法瓶(まほうびん) is the generic term, the brand name サーモス (Thermos) is also widely recognized. In everyday speech, 水筒(すいとう) (water bottle/canteen) is often used for portable insulated containers, while 魔法瓶(まほうびん) may refer to larger tabletop models as well.

COMMON COLLOCATIONS:

  • 魔法瓶(まほうびん)に入(い)れる: to put in a thermos
  • 魔法瓶(まほうびん)を持(も)っていく: to bring a thermos
  • 保温(ほおん)魔法瓶(まほうびん): heat-retaining thermos
  • 魔法瓶(まほうびん)タイプ: thermos-type (describing insulated products)

RELATED WORDS:

  • 水筒(すいとう): water bottle, canteen
  • 保温(ほおん): heat retention
  • 保冷(ほれい): cold retention
  • 真空(しんくう): vacuum (as in 真空(しんくう)断熱(だんねつ), vacuum insulation)
general
Added 2026.3.17 19:34 · Revised 2026.4.4 21:31
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