vacuum flask

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Noun

vacuum flask (plural vacuum flasks)

1. Synonym of thermos#English|thermos
2. (chemistry) A Dewar vessel, a scientific instrument 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.

Synonyms

• (laboratory flask with spout) Büchner flask
• Dewar flask
• Dewar vessel
• vacuum bottle

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