dewar

noun, often capitalized
dew·​ar | \ ˈdü-ər How to pronounce dewar (audio) also ˈdyü- \

Definition of dewar

: a glass or metal container made like a vacuum bottle that is used especially for storing liquefied gases

called also Dewar flask

First Known Use of dewar

1939, in the meaning defined above

History and Etymology for dewar

Sir James Dewar

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dewanee

dewar

Dewar

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Cite this Entry

“Dewar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dewar. Accessed 6 Jul. 2022.

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Dewar biographical name

Dew·​ar | \ ˈdü-ər How to pronounce Dewar (audio) , ˈdyü- \

Definition of Dewar

Sir James 1842–1923 Scottish chemist and physicist

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