noun
vacuum flask that holds liquid air or helium for scientific experiments
• Syn: ↑Dewar
• Hypernyms: ↑vacuum flask, ↑vacuum bottle
* * *
nounsee dewar
* * *
Dewar flask /dūˈər fläsk/
noun
(sometimes without cap; also dewˈar) a type of vacuum flask
ORIGIN: From Sir James Dewar (1842–1923), its inventor
Useful english dictionary. 2012.