from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See vacuum bottle.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A bottle, flask or similar vessel having a vacuum between its inner and outer silvered walls; designed to maintain the temperature of its contents
  • n. A Dewar vessel is the scientific version, and is most often used to store liquified gases.
  • n. 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.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. flask with double walls separated by vacuum; used to maintain substances at high or low temperatures


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