vacuum flask

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vacuum flask (plural vacuum flasks)

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



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