vacuum flask

(redirected from Dewar tube)
Also found in: Thesaurus.

vacuum flask

vacuum flask

n
an insulating flask that has double walls, usually of silvered glass, with an evacuated space between them. It is used for maintaining substances at high or low temperatures. Also called: Thermos or Dewar flask
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vacuum flask - flask with double walls separated by vacuumvacuum flask - flask with double walls separated by vacuum; used to maintain substances at high or low temperatures
Dewar, Dewar flask - vacuum flask that holds liquid air or helium for scientific experiments
flask - bottle that has a narrow neck
thermos, thermos bottle, thermos flask - vacuum flask that preserves temperature of hot or cold drinks
Translations
يِرْموس لِحِفظ حَرارَة السَّوائِل

vacuum flask

vacuum bottle (Am) ntermos m inv

vacuum

(ˈvӕkjuəm) noun
1. a space from which (almost) all air or other gas has been removed.
2. short for vacuum cleaner.
verb
to clean (something) using a vacuum cleaner. She vacuumed the carpet.
vacuum cleaner
a machine that cleans carpets etc by sucking dust etc into itself.
ˈvacuum flask noun
a container with double walls that have a vacuum between them to keep the contents from losing or gaining heat. a (vacuum-)flask of hot coffee.