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We found 5 dictionaries with English definitions that include the word vacuum flasks:
Click on the first link on a line below to go directly to a page where "vacuum flasks" is defined.

General (5 matching dictionaries)

1. vacuum flasks: Collins English Dictionary [home, info]
2. vacuum flasks: Vocabulary.com [home, info]
3. vacuum flasks: Cambridge Advanced Learner's Dictionary [home, info]
4. vacuum flasks: Wiktionary [home, info]
5. Vacuum flasks: Dictionary/thesaurus [home, info]

(Note: See vacuum_flask for more definitions.)

Quick definitions from WordNet (vacuum flask) ▸ noun:  flask with double walls separated by vacuum; used to maintain substances at high or low temperatures ▸ Also see vacuum_flask ▸ Words similar to vacuum flasks ▸ Usage examples for vacuum flasks ▸ Idioms related to vacuum flasks (New!) ▸ Words that often appear near vacuum flasks ▸ Rhymes of vacuum flasks ▸ Invented words related to vacuum flasks