ventilation

noun

1. (countable, uncountable)The replacement of stale or noxious air with fresh.

   “So you punched out a window for ventilation. Was that before or after you noticed you were standing in a lake of gasoline?”

2. (countable, uncountable)The mechanical system used to circulate and replace air.
3. (countable, uncountable)An exchange of views during a discussion.
4. (countable, uncountable)The public exposure of an issue or topic.

   “"No, Mr. Malone, I will place no restriction upon your correspondence, since the ventilation of the facts is the object of your journey; but I demand that you shall give no particulars as to your exact destination, and that nothing be actually published until your return."”

5. (countable, uncountable)The bodily process of breathing; the inhalation of air to provide oxygen, and the exhalation of spent air to remove carbon dioxide.

   “This toxin impairs ventilation by causing inflammation in the bronchioles.”

6. (abbreviation, alt-of, countable, ellipsis, uncountable)Ellipsis of mechanical ventilation.

   “It is time to try to wean this patient from ventilation.”