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3 definitions found
 for Boiler
From The Collaborative International Dictionary of English v.0.48 :

  Boiler \Boil"er\, n.
     1. One who boils.
        [1913 Webster]
  
     2. A vessel in which any thing is boiled.
        [1913 Webster]
  
     Note: The word boiler is a generic term covering a great
           variety of kettles, saucepans, clothes boilers,
           evaporators, coppers, retorts, etc.
           [1913 Webster]
  
     3. (Mech.) A strong metallic vessel, usually of wrought iron
        plates riveted together, or a composite structure
        variously formed, in which steam is generated for driving
        engines, or for heating, cooking, or other purposes.
        [1913 Webster]
  
     Note: The earliest steam boilers were usually spheres or
           sections of spheres, heated wholly from the outside.
           Watt used the wagon boiler (shaped like the top of a
           covered wagon) which is still used with low pressures.
           Most of the boilers in present use may be classified as
           plain cylinder boilers, flue boilers, sectional and
           tubular boilers.
           [1913 Webster]
  
     Barrel of a boiler, the cylindrical part containing the
        flues.
  
     Boiler plate, Boiler iron, plate or rolled iron of about
        a quarter to a half inch in thickness, used for making
        boilers and tanks, for covering ships, etc.
  
     Cylinder boiler, one which consists of a single iron
        cylinder.
  
     Flue boilers are usually single shells containing a small
        number of large flues, through which the heat either
        passes from the fire or returns to the chimney, and
        sometimes containing a fire box inclosed by water.
  
     Locomotive boiler, a boiler which contains an inclosed fire
        box and a large number of small flues leading to the
        chimney.
  
     Multiflue boiler. Same as Tubular boiler, below.
  
     Sectional boiler, a boiler composed of a number of
        sections, which are usually of small capacity and similar
        to, and connected with, each other. By multiplication of
        the sections a boiler of any desired capacity can be built
        up.
  
     Tubular boiler, a boiler containing tubes which form flues,
        and are surrounded by the water contained in the boiler.
        See Illust. of Steam boiler, under Steam.
  
     Tubulous boiler. See under Tubulous. See Tube, n., 6,
        and 1st Flue.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Boiler \Boil"er\, n.
     A sunken reef; esp., a coral reef on which the sea breaks
     heavily.
     [Webster 1913 Suppl.]

From WordNet (r) 3.0 (2006) :

  boiler
      n 1: sealed vessel where water is converted to steam [syn:
           boiler, steam boiler]
      2: a metal pot for stewing or boiling; usually has a lid [syn:
         kettle, boiler]

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