Thermos™
noun /ˈθɜːməs/
/ˈθɜːrməs/
(British English also Thermos flask)
(North American English also Thermos bottle)
- a particular kind of vacuum flask (= a container like a bottle with double walls with a vacuum between them, used for keeping liquids hot or cold) compare flaskOxford Collocations DictionaryThermos™ is used before these nouns:
- bottle
- flask
Word Originearly 20th cent.: from Greek, literally ‘hot’.