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 replacement of stale or noxious air with fresh air.
- The mechanical system or equipment used to circulate air or to replace stale air with fresh air.
- See respiration.
- Aeration or oxygenation, as of blood.