Word.ws English Dictionary

dewars

dewars is the plural of dewar.

Meaning of dewar

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.
    • 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
    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

See all 5 meanings of dewar

Noun capitalized: Dewars

Dewars

  1. (plural) plural of Dewar

Questions about dewars

What is dewars the plural of?
Dewars is the plural of dewar.
What part of speech is dewars?
Dewars is a noun.

Words near dewars in the dictionary

  1. Dewar flask
  2. Dewar flasks
  3. Dewar vessel
  4. Dewar vessels
  5. dewarra
  6. dewars
  7. Dewas
  8. dewata
  9. dewatas
  10. dewater
  11. dewaterabilities

Source and license

Adapted from Wiktionary: dewars (page history and authors); Dewars (page history and authors); dewar (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “dewars.” Word.ws, https://word.ws/dewars. Based on Wiktionary, CC BY-SA 4.0.