VACUUM FLASK

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does vacuum flask mean? 

• VACUUM FLASK (noun)
  The noun VACUUM FLASK has 1 sense:

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

  Familiarity information: VACUUM FLASK used as a noun is very rare.

 Dictionary entry details 

• VACUUM FLASK (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting man-made objects

Synonyms:

vacuum bottle; vacuum flask

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)