noun Date: 1519 the act or process of ventilating, 2. circulation of air , the circulation and exchange of gases in the lungs or gills that is basic to respiration, a system or means of providing fresh air
VENTILATION
Meaning of VENTILATION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012