Dewar

Etymology
From, an occupational surname for a custodian of holy relics. It could also be an habitational surname, from. The flask is named for, who is credited with its invention.

Statistics

 * According to the 2010 United States Census, Dewar is the 11168th most common surname in the United States, belonging to 2833 individuals. Dewar is most common among White (77.73%) and Black/African American (15.14%) individuals.

Noun

 * 1)  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.