dewar

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun vacuum flask that holds liquid air or helium for scientific experiments
noun Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923)

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

Dewar, Captain E. J., 287, 292. — History of the War in South Africa 1899-1902 v. 1 (of 4) : Compiled by Direction of His Majesty's Government, Great Britain. War Office
‘What’s THAT then?’ He pointed to a bottle labelled Dewar’s whisky, which stood on the table near the spirit-kettle. — The Wouldbegoods: Being the Further Adventures of the Treasure Seekers, E. (Edith) Nesbit
BROTHER DAVID DEWAR was a plain, honest, straightforward man, who never hesitated to express his convictions, however unpalatable they might be to others. — The Jest Book: The Choicest Anecdotes and Sayings, Mark Lemon

Dewar flask

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