ALL meanings of dewar flask
Dew·ar flask
D d - noun dewar flask a type of vacuum flask, esp one used in scientific experiments to keep liquid air, helium, etc; Thermos 3
- noun dewar flask a container with an evacuated space between two walls that are highly reflective, capable of maintaining its contents at a near-constant temperature over relatively long periods of time; thermos. 1
- noun dewar flask A type of double-walled vacuum flask with silver lining. 0