noun
- Vacuum flask that preserves temperature of hot or cold drinks.
- synonyms: thermos, thermos bottle
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). thermos flask. Retrieved September 21, 2026, from http://smartdefine.org/thermos_flask/definitions/1315903 |
| Chicago | WordNet. 2010. "thermos flask" http://smartdefine.org/thermos_flask/definitions/1315903 (accessed September 21, 2026). |
| Harvard | WordNet 2010, thermos flask, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/thermos_flask/definitions/1315903>. |
| MLA | WordNet. "thermos flask" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/thermos_flask/definitions/1315903> |