dewar

See also: Dewar

English

A dewar is filled with liquid nitrogen from a tank

Alternative forms

• Dewar

Etymology

Named after British physicist and chemist James Dewar, its inventor.

Pronunciation

• (General American) IPA^(key): /ˈduː.ɚ/
• Homophone: doer

Noun

dewar (plural dewars)

1. 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.
   • 2009 February 17, Guy Gugliotta, “Perseverance Is Paying Off for a Test of Relativity in Space”, in New York Times‎^[1]:

     A large thermos-like container called a dewar contained 645 gallons of liquid helium to be cooled to within two degrees of absolute zero.

Synonyms

• Dewar bulb
• Dewar flask
• Dewar tube
• Dewar vessel
• vacuum flask
• vacuum thermos
• vacuum thermos bottle
• vacuum thermos bulb
• vacuum thermos flask
• vacuum thermos vessel

 

Hypernyms

• thermos
• thermos bottle
• thermos bulb
• thermos flask
• thermos vessel

 

Translations

vacuum flask

• Chinese: 保温瓶 (zh) (bǎowēnpíng)

  Mandarin: 保温瓶 (zh) (bǎowēnpín)

• Finnish: Dewar-astia

Anagrams

• Warde, adrew, drawe, wader, wared