from The Century Dictionary and Cyclopedia
- n. A fan used for creating a draft by the formation of a partial vacuum, in contradistinction to a blower.
Sorry, no etymologies found.
Practically all types have sieve or exhaust-fan attachments, which draw the loosened parchment and silver skin into one compartment, while the cleaned beans pass into another.
The car has a perforated false bottom, to which is attached a powerful exhaust-fan system that sucks the heat out of the coffee.
This way the brilliant blue beams of the preinstalled 120 mm rear exhaust-fan can emanate in a black-bluish array.