Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
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
Farlex Partner Medical Dictionary © Farlex 2012
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
Medical Eponyms © Farlex 2012