ventilation

noun

1. the act of ventilating.
2. the state of being ventilated.
3. facilities or equipment for providing ventilation.

noun

1. the act or process of ventilating or the state of being ventilated
2. an installation in a building that provides a supply of fresh air

n.

mid-15c., from Latin ventilationem (nominative ventilatio) “an exposing to the air,” noun of action from past participle stem of ventilare (see ventilate).

n.

1. The replacement of fresh air or gas for stale or noxious air or gas in a space.
2. respiration
3. Aeration or oxygenation, as of blood.
4. The verbal expression of feelings or emotions in psychotherapy.