vacuum bottle

vacuum bottle

n.

A bottle or flask having a vacuum between its inner and outer walls, designed to maintain the desired temperature of the contents. Also called vacuum flask.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

vac′uum bot`tle

n.

a bottle or flask having a double wall enclosing a vacuum to retard heat transfer; thermos.

[1905–10]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

vacuum bottle

A small container with a double wall and a partial vacuum in the space between the two walls. Vacuum bottles are used to minimize the transfer of heat between the inside and the outside and thus keep the contents at a desired temperature.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

Noun

1.

vacuum bottle - flask with double walls separated by vacuum; used to maintain substances at high or low temperatures vacuum flask Dewar, Dewar flask - vacuum flask that holds liquid air or helium for scientific experiments flask - bottle that has a narrow neck thermos, thermos bottle, thermos flask - vacuum flask that preserves temperature of hot or cold drinks

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