noun

Dewar

DYOO-wuh

Dewar (noun) means a double-walled flask, similar to a thermos, used to keep liquids at a stable temperature, especially in scientific and cryogenic work. Example: “The liquid nitrogen was stored in a dewar to keep it from evaporating.”

noun

A double-walled flask, similar to a thermos, used to keep liquids at a stable temperature, especially in scientific and cryogenic work.

"The liquid nitrogen was stored in a dewar to keep it from evaporating."

How to use Dewar

Learner’s notes

In plain EnglishA specialised insulated flask used in labs to store very cold or very hot liquids.

Common pairings

a dewar flask store in a dewar

Word forms

Dewars plural, Dewars plural, dewars plural

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The liquid nitrogen was stored in a _____ to keep it from evaporating.

Etymology

Named after the Scottish scientist James Dewar, who is credited with inventing the vacuum flask.

Frequently asked questions

What does “Dewar” mean?

The word “Dewar” means a double-walled flask, similar to a thermos, used to keep liquids at a stable temperature, especially in scientific and cryogenic work. In plain terms, a specialised insulated flask used in labs to store very cold or very hot liquids.

How do you pronounce “Dewar”?

“Dewar” is pronounced DYOO-wuh (/ˈdjuːwə(ɹ)/ in IPA).

How do you use “Dewar” in a sentence?

Here is “Dewar” used in a sentence: “The liquid nitrogen was stored in a dewar to keep it from evaporating.”

What part of speech is “Dewar”?

“Dewar” is a noun.