'Tube' definitions:

Definition of 'tube'

From: WordNet
noun
Conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases [syn: tube, tubing]
noun
Electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope [syn: tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve]
noun
A hollow cylindrical shape [syn: pipe, tube]
noun
(anatomy) any hollow cylindrical body structure [syn: tube, tube-shaped structure]
noun
An electric railway operating below the surface of the ground (usually in a city); "in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'" [syn: metro, tube, underground, subway system, subway]
verb
Provide with a tube or insert a tube into
verb
Convey in a tube; "inside Paris, they used to tube mail"
verb
Ride or float on an inflated tube; "We tubed down the river on a hot summer day"
verb
Place or enclose in a tube

Definition of 'Tube'

From: GCIDE
  • Tube \Tube\, n. [L. tubus; akin to tuba a trumpet: cf F. tube.]
  • 1. A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe. [1913 Webster]
  • 2. A telescope. "Glazed optic tube." --Milton. [1913 Webster]
  • 3. A vessel in animal bodies or plants, which conveys a fluid or other substance. [1913 Webster]
  • 4. (Bot.) The narrow, hollow part of a gamopetalous corolla. [1913 Webster]
  • 5. (Gun.) A priming tube, or friction primer. See under Priming, and Friction. [1913 Webster]
  • 6. (Steam Boilers) 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. [1913 Webster]
  • 7. (Zool.) (a) 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. (b) One of the siphons of a bivalve mollusk. [1913 Webster]
  • 8. (Elec. Railways) A tunnel for a tube railway; also (Colloq.), a tube railway; a subway. [Chiefly Eng.]
  • Note: In the New York area, the subways running under the Hudson River are sometimes referred to as the tube. [Webster 1913 Suppl. +PJC]
  • Capillary tube, a tube of very fine bore. See Capillary.
  • Fire tube (Steam Boilers), a tube which forms a flue.
  • Tube coral. (Zool.) Same as Tubipore.
  • Tube foot (Zool.), one of the ambulacral suckers of an echinoderm.
  • Tube plate, or Tube sheet (Steam Boilers), a flue plate. See under Flue.
  • Tube pouch (Mil.), a pouch containing priming tubes.
  • Tube spinner (Zool.), any one of various species of spiders that construct tubelike webs. They belong to Tegenaria, Agelena, and allied genera.
  • Water tube (Steam Boilers), a tube containing water and surrounded by flame or hot gases. [1913 Webster]

Definition of 'Tube'

From: GCIDE
  • Tube \Tube\, v. t. [imp. & p. p. Tubed; p. pr. & vb. n. Tubing.] To furnish with a tube; as, to tube a well. [1913 Webster]

Definition of 'tube'

From: GCIDE
  • Subway \Sub"way`\, n.
  • 1. An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted. [1913 Webster]
  • 2. An underground railroad, usually having trains powered by electricity provided by an electric line running through the underground tunnel. It is usually confined to the center portion of cities; -- called also tube, and in Britain, underground. In certain other countries (as in France or Russia) it is called the metro. [PJC]

Synonyms of 'tube'

From: Moby Thesaurus

Words containing 'Tube'