from The American Heritage® Dictionary of the English Language, 4th Edition
- Dewar, Sir James 1842-1923. Scottish-born chemist and physicist who studied the liquefaction of gases and the properties of matter at very low temperatures and invented cordite (1889) with Sir Frederick Abel.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 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.
from the GNU version of the Collaborative International Dictionary of English
- 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.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923)
- n. vacuum flask that holds liquid air or helium for scientific experiments
Named for James Dewar, who is credited with its invention. (Wiktionary)