Dewar flask


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De·war flask

(dū'wăr),
a glass vessel, often silvered, with two walls, the space between which is evacuated; used for maintaining materials at constant temperature or, more usually, at low temperature.
Synonym(s): vacuum flask

Dewar,

Sir James, English chemist, 1842-1923.
Dewar flask - a glass vessel with two walls, the space between which is evacuated. Synonym(s): vacuum flask

Dewar flask

an insulated container for the storage of cryogenic liquids such as liquid nitrogen.
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