dewar en · NOUN
Pronunciation
- /ˈdjuː.ə/ (Received-Pronunciation)
- /ˈduː.ɚ/ (General-American)
Etymology
Named after British physicist and chemist James Dewar, its inventor.
Meanings
-
A vacuum flask; a vessel which keeps its contents hotter or cooler than their environment without the need to modify the pressure, by interposing an evacuated region to provide thermal insulation between the contents and the environment.
A large thermos-like container called a dewar contained 645 gallons of liquid helium to be cooled to within two degrees of absolute zero.
2009 February 17, Guy Gugliotta, “Perseverance Is Paying Off for a Test of Relativity in Space”, in New York Times:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| Dewar | alternative | lexicographic | |
| dewars | Number=Plur | lexicographic |
Hypernyms
thermos · thermos bulb · thermos flask · thermos vessel · thermos bottle
Synonyms
vacuum thermos bulb · Dewar tube · Dewar vessel · vacuum thermos bottle · vacuum thermos flask · Dewar flask · vacuum thermos vessel · vacuum thermos · Dewar bulb · vacuum flask
Translations (3)
cmn 保温瓶 (vacuum flask) · fi Dewar-astia (vacuum flask) · pl termos (vacuum flask)