Definify.com
Webster 1913 Edition
Ventilation
Venˊti-la′tion
,Noun.
[L.
ventilatio
: cf. F. ventilation
.] 1.
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.
Insuring, for the laboring man, better
ventilation
. F. W. Robertson.
2.
The act of refrigerating, or cooling; refrigeration;
as,
. ventilation
of the blood[Obs.]
Harvey.
3.
The act of fanning, or winnowing, for the purpose of separating chaff and dust from the grain.
4.
The act of sifting, and bringing out to view or examination; free discussion; public exposure.
The
ventilation
of these points diffused them to the knowledge of the world. Bp. Hall.
5.
The act of giving vent or expression.
“Ventilation of his thoughts.” Sir H. Wotton.
Webster 1828 Edition
Ventilation
VENTILA'TION
,Noun.
1.
The act of ventilating; the act or operation of exposing to the free passage of air, or of causing the air to pass through any place, for the purpose of expelling impure air and dissipating any thing noxious.2.
The act of fanning or winnowing, for the purpose of separating chaff and dust.3.
Vent; utterance. [Not in use.]4.
Refrigeration. [Not in use.]