: 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
But the group soldiers on, with Alex wrapping herself in blankets in the backseat and Paul and Hillary nipping from a flask to try to stay warm.
—
Kimberly Roots, TVLine, 30 Mar. 2025
There’s a zippered pocket in the front for your valuables, and a stretchy mesh pocket all along the back for a water flask (up to 17 ounces).
—Jennifer Heimlich, SELF, 28 Mar. 2025
Others took the opportunity to post Musk’s legendarily inept Elden Ring build, which boasted no less than two shields, but no healing flask (somehow, his character had managed to reach level 111).
—Dani Di Placido, Forbes, 17 Jan. 2025
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
See All Example Sentences for flask
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Kimberly Roots, TVLine, 30 Mar. 2025
There’s a zippered pocket in the front for your valuables, and a stretchy mesh pocket all along the back for a water flask (up to 17 ounces).
—Jennifer Heimlich, SELF, 28 Mar. 2025
Others took the opportunity to post Musk’s legendarily inept Elden Ring build, which boasted no less than two shields, but no healing flask (somehow, his character had managed to reach level 111).
—Dani Di Placido, Forbes, 17 Jan. 2025
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
See All Example Sentences for flask
Cite this Entry
“Flask.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flask. Accessed 23 Apr. 2025.
Copy CitationKids 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
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