Noun
The act of ventilating, or the state of being ventilated; the art or process of replacing foul air by that which is pure, in any inclosed place, as a house, a church, a mine, etc.; free exposure to air.
The act of refrigerating, or cooling; refrigeration; as, ventilation of the blood.
The act of fanning, or winnowing, for the purpose of separating chaff and dust from the grain.
The act of sifting, and bringing out to view or examination; free discussion; public exposure.
The act of giving vent or expression.
Source: Webster's dictionaryThe excitement really didn't start to build until the trailer - which was carrying me, with a space suit with ventilation and all that sort of stuff - pulled up to the launch pad. Alan Shepard
There can be little doubt that fishes swimming rapidly do not make respiratory movements at all, but obtain the necessary ventilation of the gills simply by opening the mouth. August Krogh
I was shooting a bikini promotion in Mahe in the Seychelles in 1980 when there was a military coup and I, along with a roomful of other people, ended up being kidnapped and held hostage at gunpoint in a windowless room with no ventilation for 36 hours. Brigitte Nielsen
8. No illness presented in people who were/are not exposed to "common ventilation systems (have separate closed ventilation systems) when illness is seen in persons in close proximity who have a common ventilation system." Source: Internet
Aerosol scientist Professor Lidia Morawska agrees with the move, saying masks aren't needed outdoors but are a good idea where ventilation is poor. Source: Internet
A fire burning in an enclosed room with poor ventilation presents a very dangerous hazard, since it can create a build-up of carbon monoxide in the air. Source: Internet