[1] : The Collaborative International Dictionary of English v.0.48

exhaust \exhaust"\, a. l. exhaustus, p. p.
   1. drained; exhausted; having expended or lost its energy.
      1913 webster

   2. pertaining to steam, air, gas, etc., that is released from
      the cylinder of an engine after having preformed its work.
      1913 webster

   exhaust draught, a forced draught produced by drawing air
      through a place, as through a furnace, instead of blowing
      it through.

   exhaust fan, a fan blower so arranged as to produce an
      exhaust draught, or to draw air or gas out of a place, as
      out of a room in ventilating it.

   exhaust nozzle, exhaust orifice steam engine, the blast
      orifice or nozzle.

   exhaust pipe steam engine, the pipe that conveys exhaust
      steam from the cylinder to the atmosphere or to the
      condenser.

   exhaust port steam engine, the opening, in the cylinder
      or valve, by which the exhaust steam escapes.

   exhaust purifier milling, a machine for sorting grains,
      or purifying middlings by an exhaust draught. --knight.

   exhaust steam steam engine, steam which is allowed to
      escape from the cylinder after having been employed to
      produce motion of the piston.

   exhaust valve steam engine, a valve that lets exhaust
      steam escape out of a cylinder.
      1913 webster
see also:
exhaust draught exhaust fan exhaust nozzle exhaust orifice exhaust pipe exhaust port 
exhaust purifier exhaust steam exhaust valve 

[2] : WordNet (r) 2.0

exhaust pipe
     n : a pipe through which burned gases travel from the exhaust
         manifold to the muffler

Pipe >> P Words
Pipe, definition of term: Pipe
pipe_pag1.html

Exhaust >> E Words
Exhaust, definition of term: Exhaust
exhaust_pag1.html

Pipe Clay >> P Words
Pipe Clay, definition of term: Pipe Clay
pipe+clay_pag1.html

Pipe Dream >> P Words
Pipe Dream, definition of term: Pipe Dream
pipe+dream_pag1.html

Exhaust System >> E Words
Exhaust System, definition of term: Exhaust System
exhaust+system_pag1.html

Nervous Exhaust >> N Words
Nervous Exhaust, definition of term: Nervous Exhaust
nervous+exhaust_pag1.html

Indian Pipe >> I Words
Indian Pipe, definition of term: Indian Pipe
indian+pipe_pag1.html

Light Pipe >> L Words
Light Pipe, definition of term: Light Pipe
light+pipe_pag1.html

Peace Pipe >> P Words
Peace Pipe, definition of term: Peace Pipe
peace+pipe_pag1.html