| Definitions | | vacuum flask |
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noun
- A bottle, flask or similar vessel having a vacuum between its inner and outer silvered walls; designed to maintain the temperature of its contents
(wikipedia, Dewar flask)
- (context, chemistry) A Dewar vessel is the scientific version, and is most often used to store liquified gases.
- (context, chemistry) A type of glass flask used in a laboratory similar to an Erlenmeyer flask, but with a side spout used for conection to an aspirator. Also known as a Bí¼chner flask.
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