| 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. |
| vacuum bottle A 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. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  vacuum bottle - flask with double walls separated by vacuum; used to maintain substances at high or low temperaturesDewar, 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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