flask

noun

ˈflask 

ˈfläsk

: 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

And no more pulling from the bottle, the flask has integrated cups for classy sipping. —Matthew Medendorp, Travel + Leisure, 27 Nov. 2024

The message and its flask were found inside an earthenware pot at the Cité de Limes. —Brie Stimson, Fox News, 22 Sep. 2024

Glassware seemingly straight from the mad scientist's lab—beakers, flasks, test tubes, and more—hold candy that guests can enjoy at their own risk, of course. —Sarah Martens, Better Homes & Gardens, 28 Oct. 2024

In Your Pack: Not every run requires a backpack or hydration vest of some sort, but super lightweight, comfortable running vests can feel barely there while carrying a phone—plus things like a hydration flask, lightweight jacket, or car or house keys. —Lisa Jhung, Outside Online, 28 Oct. 2024

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

• Erlenmeyer flask
• Florence flask
• hip flask
• vacuum flask

Kids Definition

flask

noun

ˈflask 

: a container shaped like a flattened bottle

Medical Definition

flask

1 of 2 noun

ˈflask 

: 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