tube


From The Collaborative International Dictionary of English v.0.48:

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]
.

From The Collaborative International Dictionary of English v.0.48:

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]
.

From The Collaborative International Dictionary of English v.0.48:

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]
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