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

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

Outside food, beverage, liquid containers, alcohol, cans, bottles, flasks (hydroflasks, metal, etc.) or coolers. —Ed Masley, The Arizona Republic, 9 Dec. 2024

One exception is iron; elemental mercury is often kept in a steel flask. —Sallie Tisdale, Harper's Magazine, 2 Dec. 2024

This science travel lab, available at Walmart, includes the lab case, goggles, one beaker, one flask, three test tubes, a removable ruler, a working scale, an eye dropper, a funnel, a double-sided measuring spoon, six experiment cards and three sticker sheets. —Nora Colomer, Fox News, 3 Dec. 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