vacuum flask (suomeksi)

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(synonym of, thermos, lang=en)
(lb, en, chemistry) A Dewar vessel is the scientific version, and is most often used to store liquified gases.
(lb, en, 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.