Definition of thermos in English:


Line breaks: ther|mos
Pronunciation: /ˈθəːmɒs
(also thermos flask, US also thermos bottle)


A vacuum flask.
More example sentences
  • These include her passport, money belt and traveler's checks; pens, notebooks and maps; a Thermos, mug and knife.
  • Their plastic cups came from visitors from a mosque in Swindon who arrived one afternoon with Thermoses of sweet tea and samosas still warm from the oven.
  • On the stage is a lectern, a leather armchair, a potted palm and a table with a Thermos flask: enter the speaker in a beige cardigan.


early 20th century: from Greek, literally 'hot'.

Definition of thermos in:

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Pronunciation: ˈnoisəm
having an extremely offensive smell