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