Definition of dewar
: a glass or metal container made like a vacuum bottle that is used especially for storing liquefied gases —called also Dewar flask
Recent Examples of dewar from the Web
Dewar needed a container that would resist changes in temperature, keeping his cold fluid cold without need for refrigerating equipment.
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Origin and Etymology of dewar
Sir James Dewar
First Known Use: 1939
Definition of Dewar
Sir James 1842–1923 Scottish chemist and physicist
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