Flask

n.	1.	A small bottle-shaped vessel for holding fluids; as, a flask of oil or wine.
	2.	A narrow-necked vessel of metal or glass, used for various purposes; as of sheet metal, to carry gunpowder in; or of wrought iron, to contain quicksilver; or of glass, to heat water in, etc.
	3.	A bed in a gun carriage.
	4.	(Founding) The wooden or iron frame which holds the sand, etc., forming the mold used in a foundry; it consists of two or more parts; viz., the cope or top; sometimes, the cheeks, or middle part; and the drag, or bottom part. When there are one or more cheeks, the flask is called a three part flask, four part flask, etc. Erlenmeyer flask a thin glass flask, flat-bottomed and cone-shaped to allow of safely shaking its contents laterally without danger of spilling; - so called from Erlenmeyer, a German chemist who invented it. Florence flask a - Same as Betty, n., 3. b - A glass flask, round or pear-shaped, with round or flat bottom, and usually very thin to allow of heating solutions. Pocket flask a kind of pocket dram bottle, often covered with metal or leather to protect it from breaking.

Noun	1.	flask - bottle that has a narrow neck
	2.	flask - the quantity a flask will hold Synonyms: flaskful

calabash, canteen, carafe, carboy, caster, cruet, cruse, decanter, demijohn, ewer, fifth, flacon, flagon, flasket, gourd, hipflask, hot-water bottle, jar, jeroboam, jug, lota, magnum, mussuk, olla, phial, stoup, vacuum bottle, vial