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: a container often somewhat narrowed toward the outlet and often fitted with a closure: such as
a
: a broad flattened necked vessel used especially to carry an alcoholic beverage on the person
b
British
: thermos
Examples of flask in a Sentence
Recent Examples on the Web
Flask Carry your beverage with an indestructible swagger with Yeti’s leak-proof flask.
—Jaclyn Trop, Robb Report, 10 Dec. 2024
Hearken back to a simpler time with this vintage style flask with a cool tartan pattern.
—Megan Ulu-Lani Boyanton, Better Homes & Gardens, 20 Nov. 2024
The corporal later found the trash bag contained empty alcohol drink boxes and a flask with an unknown liquid inside.
—Sarah Nelson, The Indianapolis Star, 14 Nov. 2024
These are cells that can grow and live outside of a living organism so they can be kept in a petri dish or a flask.
—Eva Amsen, Forbes, 17 Oct. 2024
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Word History
Etymology
Middle French flasque powder flask, ultimately from Late Latin flascon-, flasco bottle, probably of Germanic origin; akin to Old High German flaska bottle
First Known Use
1549, in the meaning defined above
Phrases Containing flask
Dictionary Entries Near flask
Cite this Entry
“Flask.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flask. Accessed 15 Dec. 2024.
Kids Definition
flask
noun
: a container shaped like a flattened bottle
Medical Definition
flask
1 of 2 noun
: a container often somewhat narrowed toward the outlet and often fitted with a closure: as
a
: any of various usually blown-glass vessels used for technical purposes in a laboratory
b
: a metal container in which the materials used to form a dental restoration (as a denture) are processed
flask
2 of 2 transitive verb
: to place (a denture) in a flask for processing
More from Merriam-Webster on flask
Thesaurus: All synonyms and antonyms for flask
Nglish: Translation of flask for Spanish Speakers
Britannica English: Translation of flask for Arabic Speakers
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