VACUUM FLASK

Pronunciation (US): (GB):

Meaning:

Flask with double walls separated by vacuum; used to maintain substances at high or low temperatures

Synonyms:

vacuum bottle; vacuum flask

Classified under:

Nouns denoting man-made objects

Hypernyms ("vacuum flask" is a kind of...):

flask (bottle that has a narrow neck)

Hyponyms (each of the following is a kind of "vacuum flask"):

Dewar; Dewar flask (vacuum flask that holds liquid air or helium for scientific experiments)

thermos; thermos bottle; thermos flask (vacuum flask that preserves temperature of hot or cold drinks)