\ ˈflask How to pronounce flask (audio) , ˈfläsk \

Definition of flask

: 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 Dismissive of organized religion, Carey Falwell died at age 55, with a hip flask in his pocket and an unsaved soul, his grandson said. Daniel Burke, CNN, "Jerry Falwell Jr.'s fatal miscalculation," 30 Aug. 2020 The senator carried a flask of booze in his briefcase and drank heavily through the workday. Washington Post, "Joseph McCarthy: An American demagogue who foreshadowed Trump," 27 Aug. 2020 Or premixing a simple, stirred cocktail like a Vieux Carré, proportioned for one serving, an 8-ounce flask or even to fill a 32-ounce water bottle. Sharyn Jackson, Star Tribune, "'Camp Cocktails' teaches you how to mix the perfect drink in the great outdoors," 7 Aug. 2020 Offering up a drink to toast to Elliot, Lila and Diego both take a swig from the same flask, but Lila spits hers out. Rachel Paige, refinery29.com, "R29 Binge Club: Umbrella Academy Season 2 Recap," 3 Aug. 2020 Scientists in white lab coats brought the vial to Building 14, carefully poured the contents into a flask, added a medium of vitamins and sugar, and began growing billions of cells. Jeffrey Gettleman, BostonGlobe.com, "Indian billionaires bet big on head start in coronavirus vaccine race," 1 Aug. 2020 Take yogurt, ice cream, soup and more with you on the go with this food flask, which is BPA-free and has a double-wall insulation to keep temperatures regulated. Krystin Arneson, CNN Underscored, "A huge Hydro Flask sale is happening at Dick’s Sporting Goods," 2 July 2020 Also on display is a marble statuette which depicts a schematic version of the female body, possibly 7,000 years old, and a conical flask, used in religious ceremonies in the 13th century BC, adorned with geometric patterns. The Economist, "Small but mighty Greece’s local museums offer a cornucopia of treasures," 30 June 2020 To test for live viruses, researchers must grow them from samples in cell culture flasks or petri dishes. Lois Parshley, National Geographic, "How long does the coronavirus last inside the body?," 3 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'flask.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of flask

1549, in the meaning defined above

History and Etymology for flask

Middle French flasque powder flask, ultimately from Late Latin flascon-, flasco bottle, probably of Germanic origin; akin to Old High German flaska bottle

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Time Traveler for flask

Time Traveler

The first known use of flask was in 1549

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Statistics for flask

Last Updated

2 Sep 2020

Cite this Entry

“Flask.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flask. Accessed 20 Sep. 2020.

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More Definitions for flask


How to pronounce flask (audio)

English Language Learners Definition of flask

: a container that is shaped like a flattened bottle and that is used to carry alcohol
: a glass bottle used in scientific laboratories


\ ˈflask How to pronounce flask (audio) \

Kids Definition of flask

: a container like a bottle with a flat or rounded body


\ ˈflask How to pronounce flask (audio) \

Medical Definition of flask

 (Entry 1 of 2)

: 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

Medical Definition of flask (Entry 2 of 2)

: to place (a denture) in a flask for processing

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