Ventilation
WordNet
noun
(1) The act of supplying fresh air and getting rid of foul air
(2) The bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
(3) A mechanical system in a building that provides fresh air
"She was continually adjusting the ventilation"
(4) Free and open discussion of (or debate on) some question of public interest
"Such a proposal deserves thorough public discussion"
WiktionaryText
Noun
- The replacement of stale or noxious air with fresh.
- The mechanical system used to circulate and replace air..
- An exchange of views during a discussion.
- The bodily process of breathing; the inhalation of air to provide oxygen, and the exhalation of spent air to remove carbon dioxide.