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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
Take a flask of herbal tea back to your room, curl up with a hot water bottle, and download the SkyView app to embark on your own private celestial safari every evening.
—
Liam Hess, Vogue, 29 Dec. 2024
Elemental mercury, considered pure at 99.99 percent, is sold in a standard flask of seventy-six pounds for around $2,500, despite a worldwide stock of about 600,000 tons.
—
Sallie Tisdale, Harper's Magazine, 2 Dec. 2024
Picture a flask of vodka passed across a corpse, a pool of blood lit up by neon signs, an illicit kiss soundtracked by screams.
—
Mikaella Clements & Onjuli Datta, Vulture, 1 Nov. 2024
The 16-year-old who attacked Elbit Systems used two thermos flasks packed with explosives in an attack on the Israeli defense company and was charged alongside a 23-year-old accomplice, according to Bloomberg.
—
Louis Casiano, Fox News, 23 Dec. 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 8 Feb. 2025.
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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