Definition of "Dewar"

A surname from Scottish Gaelic.  examples

An unincorporated community in Black Hawk County, Iowa, United States.  examples

A city in Okmulgee County, Oklahoma, United States.  examples

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.  examples