vacuum flask

[n] - flask with double walls separated by vacuum
Found on http://www.webdictionary.co.uk/definition.php?query=vacuum%20flask

vacuum flask

Synonym for Dewar flask ... <apparatus> 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) ...
Found on http://www.encyclo.co.uk/local/20973

vacuum flask

vacuum bottle noun flask with double walls separated by vacuum; used to maintain substances at high or low temperatures
Found on http://wordnetweb.princeton.edu/perl/webwn?s=vacuum%20flask

vacuum flask

vessel with double walls, the space between which is evacuated. It was invented by the British chemist and physicist Sir James Dewar in the 1890s. ... [1 related articles]
Found on http://www.britannica.com/eb/a-z/v/1

vacuum flask

Type: Term Synonyms: Dewar flask
Found on http://www.medilexicon.com/medicaldictionary.php?t=33917

vacuum flask

Container for keeping things either hot or cold. It has two silvered glass walls with a vacuum between them, in a metal or plastic outer case. This design reduces heat transfer by radiation (prevented by the silvering) and conduction (prevented by the vacuum). A vacuum flask is therefore equally effi...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0016832.html

Vacuum flask

A vacuum flask (also known as a Dewar flask, Dewar bottle or Thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask`s surroundings. Invented by Sir James Dewar in 1892, the vacuum flask consists of two flasks, placed one within the other and joined at the neck. The g....
Found on http://en.wikipedia.org/wiki/Vacuum_flask
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