plumber

from WordNet (r) 3.0 (2006)

plumber
    n 1: a craftsman who installs and repairs pipes and fixtures and
         appliances [syn: {plumber}, {pipe fitter}]

from The Collaborative International Dictionary of English v.0.48

Plumber \Plumb"er\, n. [F. plombier. See {Plumb}.]
   One who works in lead; esp., one who furnishes, fits, and
   repairs lead pipes.
   [1913 Webster]

   2. Hence: Any worker who installs or repairs piping and
      related equipment for conveyance of water, gas, or
      drainage into or out of buildings, or within buildings to
      fixtures or equipment using water. The type of material
      used for the conduits varies with the application, and may
      be may be of lead, iron, copper, glass, palstic, or other
      material.
      [PJC]

from The Free On-line Dictionary of Computing (8 July 2008)

Plumber

   <programming, tool> A system for obtaining information about
   {memory leaks} in {Ada} and {C} programs.

   (http://home.earthlink.net/~owenomalley/plumber.html).

   (17 Feb 1999)