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dew·ar | \ ˈdü-ər 
also ˈdyü- \
also ˈdyü- \Definition of dewar
(Entry 1 of 2)
: a glass or metal container made like a vacuum bottle that is used especially for storing liquefied gases
— called also Dewar flask
Dewar
biographical nameDew·ar | \ ˈdü-ər , ˈdyü- \
, ˈdyü- \Definition of Dewar (Entry 2 of 2)
Sir James 1842–1923 Scottish chemist and physicist
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Time Traveler for dewar
The first known use of dewar was in 1939
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