dewar

Noun

Dew=ar

WORDNET DICTIONARY

dewar(n = noun.artifact) dewar flask - vacuum flask that holds liquid air or helium for scientific experiments;

is a kind of vacuum bottle, vacuum flask

dewar(n = noun.person) sir james dewar - Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923);

is a kind of chemist, physicist

dewar, n. Physics a double-walled flask with a vacuum between the walls to reduce the transfer of heat.

Etymology

Sir James Dewar, Brit. physicist d. 1923