Dewar vessel

noun

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.

Liquid Nitrogen Storage www.finemech.com/ tanks for storing and transport. S-Steel, Alu and Glass Dewars.

Also called Dewar, Dewar flask.

Origin:
1900–05; named after Sir James Dewar, its inventor

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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an extraordinary or unusual thing, person, or event; an exceptional example or instance.

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