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Tube

Definition: A hollow cylinder, of any material, used for the conveyance
of fluids, and for various other purposes; a pipe.

Tube

Definition: A telescope.

Tube

Definition: A vessel in animal bodies or plants, which conveys a fluid or
other substance.

Tube

Definition: The narrow, hollow part of a gamopetalous corolla.

Tube

Definition: A priming tube, or friction primer. See under Priming, and
Friction.

Tube

Definition: A small pipe forming part of the boiler, containing water and
surrounded by flame or hot gases, or else surrounded by water and
forming a flue for the gases to pass through.

Tube

Definition: A more or less cylindrical, and often spiral, case secreted
or constructed by many annelids, crustaceans, insects, and other
animals, for protection or concealment. See Illust. of Tubeworm.

Tube

Definition: One of the siphons of a bivalve mollusk.

Tube

Definition: To furnish with a tube; as, to tube a well.