from the GNU version of the Collaborative International Dictionary of English
- adj. 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.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a fan that moves air out of an enclosure
Sorry, no etymologies found.
I turned on the exhaust fan and opened the doors to Second Avenue to allow the cool air to ventilate the studio.