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2 definitions found
 for Carburetor
From The Collaborative International Dictionary of English v.0.48 :

  Carburetor \Car"bu*ret`or\, Carburettor \Car"bu*ret`tor\, n.
     1. (Chem.) An apparatus in which coal gas, hydrogen, or air
        is passed through or over a volatile hydrocarbon, in order
        to confer or increase illuminating power. [Written also
        carburettor.]
        [1913 Webster]
  
     2. One that carburets; specif., an apparatus in which air or
        gas is carbureted, as by passing it through a light
        petroleum oil. The carburetor for a gasoline engine is
        usually either a surface carburetor, or alternatively a
        float carburetor (called also float-feed carburetor,
        or spray carburetor). In the former air is charged by
        being passed over the surface of gasoline. In the latter a
        fine spray of gasoline is drawn from an atomizing nozzle
        by a current of air induced by the suction of the engine
        piston, the supply of gasoline being regulated by a float
        which actuates a needle valve controlling the outlet of
        the feed pipe. Alcohol and other volatile inflammable
        liquids may be used instead of gasoline.
        [Webster 1913 Suppl.]

From WordNet (r) 3.0 (2006) :

  carburetor
      n 1: mixes air with gasoline vapor prior to explosion [syn:
           carburetor, carburettor]

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