Ventilation
Ven`ti`la´tion
| n. | 1. | 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. |
| 2. | The act of refrigerating, or cooling; refrigeration; | |
| 3. | The act of fanning, or winnowing, for the purpose of separating chaff and dust from the grain. | |
| 4. | The act of sifting, and bringing out to view or examination; free discussion; public exposure. | |
| 5. | The act of giving vent or expression. |
| Noun | 1. | ventilation - the act of supplying fresh air and getting rid of foul air Synonyms: airing |
| 2. | ventilation - a mechanical system in a building that provides fresh air; "she was continually adjusting the ventilation" Synonyms: ventilating system, ventilation system | |
| 3. | ventilation - free and open discussion of (or debate on) some question of public interest; "such a proposal deserves thorough public discussion" Synonyms: public discussion | |
| 4. |  ventilation - the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation |