Dewar vessel
Dewar Dew"ar (d[=u]"[~e]r), Dewar vessel Dew"ar ves`sel, Dewar flask Dew"ar flask [After Sir James Dewar, British physicist.] A double-walled glass vessel for holding liquid air, liquid nitrogen, etc., having the space between the walls exhausted so as to prevent conduction of heat, and sometimes having the glass silvered to prevent absorption of radiant heat; -- called also, according to the particular shape,

{Dewar bulb},

{Dewar tube}, etc. [Webster 1913 Suppl. +PJC]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • dewar vessel — noun see dewar * * * a container with an evacuated space between two walls that are highly reflective, capable of maintaining its contents at a near constant temperature over relatively long periods of time; thermos. Also called Dewar, Dewar… …   Useful english dictionary

  • Dewar vessel — a container with an evacuated space between two walls that are highly reflective, capable of maintaining its contents at a near constant temperature over relatively long periods of time; thermos. Also called Dewar, Dewar flask. [1900 05; named… …   Universalium

  • Dewar vessel — noun A type of double walled vacuum flask with silver lining. Syn: Dewar flask …   Wiktionary

  • Dewar vessel — Dew′ar ves sel [[t]ˈdu ər, ˈdyu [/t]] n. chem. thr a kind of vacuum bottle used esp. to store liquefied gases Also called Dew′ar flask . Etymology: 1900–05; after James Dewar, (1842–1923), Scottish chemist and physicist, its inventor …   From formal English to slang

  • Dewar — Dew ar (d[=u] [ e]r), Dewar vessel Dew ar ves sel, Dewar flask Dew ar flask [After Sir James Dewar, British physicist.] A double walled glass vessel for holding liquid air, liquid nitrogen, etc., having the space between the walls exhausted so as …   The Collaborative International Dictionary of English

  • Dewar bulb — Dewar Dew ar (d[=u] [ e]r), Dewar vessel Dew ar ves sel, Dewar flask Dew ar flask [After Sir James Dewar, British physicist.] A double walled glass vessel for holding liquid air, liquid nitrogen, etc., having the space between the walls exhausted …   The Collaborative International Dictionary of English

  • Dewar flask — Dewar Dew ar (d[=u] [ e]r), Dewar vessel Dew ar ves sel, Dewar flask Dew ar flask [After Sir James Dewar, British physicist.] A double walled glass vessel for holding liquid air, liquid nitrogen, etc., having the space between the walls exhausted …   The Collaborative International Dictionary of English

  • Dewar tube — Dewar Dew ar (d[=u] [ e]r), Dewar vessel Dew ar ves sel, Dewar flask Dew ar flask [After Sir James Dewar, British physicist.] A double walled glass vessel for holding liquid air, liquid nitrogen, etc., having the space between the walls exhausted …   The Collaborative International Dictionary of English

  • dewar — noun A vacuum flask; a vessel which keeps its contents hotter or cooler than their environment without the need to modify the pressure, by interposing an evacuated region to provide thermal insulation between the contents and the environment. Syn …   Wiktionary

  • Dewar — noun A glass or metal double walled flask for holding a liquid without much loss or gain of heat; a vacuum bottle or thermos. Generally used for scientific purposes and in particular for cryogenic work. See Also: Dewar flask, Dewar vessel …   Wiktionary

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