Main Entry: flask

Pronunciation: \ˈflask, ˈfläsk\

Function: noun

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

Date: 1549

: a container often somewhat narrowed toward the outlet and often fitted with a closure: as a : a broad flattened necked vessel used especially to carry alcoholic beverages on the person b British : thermos