Definition of "flask" in English

noun

1. 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.

2. A container used to discreetly carry a small amount of a hard alcoholic beverage; a pocket flask.

3. (sciences) Laboratory glassware used to hold larger volumes than test tubes, normally having a narrow mouth of a standard size which widens to a flat or spherical base.

4. (engineering) A container for holding a casting mold, especially for sand casting molds.

5. A bed in a gun carriage.

6. A nuclear flask, a large, secure lead-lined container for the transport of nuclear material.

7. (Newfoundland) A small bottle of liquor.

verb

1. (dentistry) To invest a denture in a flask so as to produce a sectional mold.