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The Collaborative International Dictionary
Exhaust fan

Exhaust \Ex*haust"\, a. [L. exhaustus, p. p.]

  1. Drained; exhausted; having expended or lost its energy.

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

    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.

WordNet
exhaust fan

n. a fan that moves air out of an enclosure

Usage examples of "exhaust fan".

He would hop or crawl through dark conduits and finally slip through an air conditioner grille or a stilled exhaust fan.

If the bathroom exhaust fan had been in operation, it would have pumped the trash bag full of air, and he would have been forced to delay this critical phase of the mission until the fan was switched off.

After a shower, I always leave it open because the bathroom has a single small window, hardly more than a porthole, and an exhaust fan that makes all the noise of - but stirs less air than - a drum set hamĀ­mered by a heavy-metal musician.

She thought she heard him scream above the rumbling of the bathroom's exhaust fan.

First, the senior of the two turned on the powerful exhaust fan in the ceiling.