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dewar British & World English

A double-walled flask of metal or silvered glass with a vacuum between the walls, used to hold liquids at well below ambient temperature

Dewar, Sir James British & World English

(1842–1923), Scottish chemist and physicist. He is chiefly remembered for his work in cryogenics, in which he devised the vacuum flask, achieved temperatures close to absolute zero, and was the first to produce liquid oxygen and hydrogen in quantity

Dewar in dewar British & World English

A double-walled flask of metal or silvered glass with a vacuum between the walls, used to hold liquids at well below ambient temperature