Definition of Dewar flask

1. Noun. Vacuum flask that holds liquid air or helium for scientific experiments.

Exact synonyms: Dewar
Generic synonyms: Vacuum Bottle, Vacuum Flask

Definition of Dewar flask

1. Noun. A type of double-walled vacuum flask with silver lining. ¹

¹ Source:

Medical Definition of Dewar flask

1. 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: vacuum flask. (05 Mar 2000)

Lexicographical Neighbors of Dewar Flask

Devon Rex
Devon Rexes
Devonian period
Devonshire colic
Devonshire cream
Devonshire tea
Devonshire teas
Dewar flask
Dewar flasks
Dewar vessel
Dewar vessels
Dewey decimal system
Dexamethasone Intensol

Literary usage of Dewar flask

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal of the American Chemical Society by American Chemical Society (1915)
"The bat liquid was confined in a dewar flask about 35 cm. high and 10 cm. wid inside measurements. It was not silvered, hence temperatures on penta \\ /T \f ..."

2. First Course in Chemistry by William McPherson, William Edwards Henderson (1915)
"A dewar flask for preserving liquid air dewar flasks ; thermos bottles. Liquid air may be kept for some hours in a special form of flask devised by the ..."

3. Chemical Abstracts by American Chemical Society (1916)
"Flask and coil are weighed and then placed in a dewar flask covered with felt. ... The dewar flask is dosed by a loose cork with an ale. thermometer; ..."

4. Studien zur Entwicklungsgeschichte des japanischen Riesensalamanders by Charles Stuart Gager, Daniel Lange (1916)
"Place a quantity of germinating seeds (eg, oats, wheat, lupine) into a dewar flask. Into a second dewar flask place nothing. 2. ..."

5. A Text-book of Physics by Silas Ellsworth Coleman (1911)
"dewar flask. NOTE.—The commercial form of the dewar flask is known as the "thermos bottle" (Fig. 184a). The double-walled glass bottle is inclosed in a ..."

6. Practical Chemistry: Fundamental Facts and Applications to Modern Life by Newton Henry Black, James Bryant Conant (1920)
"It can be kept or transported only in an especially constructed apparatus called a dewar flask (Fig. 65). This flask consists of two glass vessels, ..."

7. Standard Methods of Chemical Analysis: A Manual of Analytical Methods and by Wilfred Welday Scott (1922)
"The stop- Jock on the apparatus is then closed, the liquid air in the dewar flask removed, the gasolene allowed to vaporize, and its pressure read on the ..."

8. Laboratory Manual of Physical Chemistry by Albert Watson Davison, Henry Sjoerd van Klooster (1922)
"The dewar flask is wrapped in cardboard and held securely on the base of the iron stand by means of two iron rings. The glass stirrer operates near the ..."

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