from
The Collaborative International Dictionary of English v.0.48
Exhaust \Ex*haust"\, 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]