ventilation

Meanings

1. The replacement of stale or noxious air with fresh.
2. The mechanical system used to circulate and replace air.
3. An exchange of views during a discussion.
4. The public exposure of an issue or topic.
5. The bodily process of breathing; the inhalation of air to provide oxygen, and the exhalation of spent air to remove carbon dioxide.
6. Ellipsis of mechanical ventilation.

Etymology

Borrowed from Middle French ventilation, from Old French ventilacion, from Late Latin ventilatio, from Latin ventilo. Morphologically ventilate + -ion.