dewar

CEFRB2

/ˈdjuːwə(ɹ)/

noun

Türkçe translations

Translating…

In plain English

  1. 01

    noun

    A container designed to keep liquids extremely cold or hot.

  2. 02

    noun

    Extra detail

    A city in Okmulgee County, Oklahoma, United States.

Examples

  • He used a dewar to store the sample.

  • The dewar flask kept the liquid cold.

At a glance

Sits at B2 on the CEFR scale

Senses
4
Parts of speech
1
Citations
1
Synonyms
5

Also pronounced

  • /ˈdjuː.ə/
  • /ˈduː.ɚ/

Deep Dive

noun

Extra meanings

  1. An unincorporated community in Black Hawk County, Iowa, United States.

  2. 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.

More examples

In context

  • We stored the liquid nitrogen in a glass dewar flask.

  • 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

Quick test

Two questions on this entry. Nothing is scored.

Question 1 · Quick check

The scientist stored liquid nitrogen in a blank to keep it cold.

Practise this properly in the app, where the word comes back before you forget it.

Nearby

Origin

noun

From Scottish Gaelic deòradh (“pilgrim, stranger”), an occupational surname for a custodian of holy relics. It could also be an habitational surname, from Dewar, Scottish Borders. The flask is named for James Dewar, who is credited with its invention.