Thermos™
noun(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 flask膳魔师保温(或保冷)瓶;保温瓶 Oxford Collocations DictionaryThermos™ is used before these nouns:- bottle
- flask
Word Originearly 20th cent.: from Greek, literally ‘hot’.