flask Meaning in the Cambridge English Dictionary
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Meaning of “flask” in the English Dictionary

"flask" in British English

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flasknoun [C]

uk   /flɑːsk/  us   /flæsk/

flask noun [C] (HOT DRINKS)

UK (US trademark Thermos) a ​specialcontainer that ​keepsdrinkshot or ​cold: a flask of ​coffee/​tea

flask noun [C] (ALCOHOL)

a ​flatbottle that is used to ​carryalcohol in ​yourpocket: a hip flask

flask noun [C] (SCIENCE)

a ​glasscontainer for ​liquids with a ​widebase and a ​narrowneck, used in ​scientificwork
(Definition of flask from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"flask" in American English

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flasknoun [C]

 us   /flæsk/
a ​smallcontainer, usually with a ​widebase and a ​narrowneck: a flask of ​water
(Definition of flask from the Cambridge Academic Content Dictionary © Cambridge University Press)
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