flasks

/F L AE1 S K S/
noun
  1. 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. 2

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

  3. 3

    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. 4

    A container for holding a casting mold, especially for sand casting molds.

  5. 5

    A bed in a gun carriage.

verb
  1. 1

    To invest a denture in a flask so as to produce a sectional mold.

Source: https://en.wiktionary.org/wiki/flask, https://en.wiktionary.org/wiki/flasks