ventilation
n. uncountablen. the process of moving fresh air into a room or building. It also refers to medical equipment that helps a person breathe when they cannot do it on their own.
n. the provision of fresh air to a room or building; in a medical context, the artificial replacement or assistance of spontaneous breathing. Often involves the mechanical exchange of gases to maintain oxygenation.
The kitchen needs better ventilation to remove the cooking smells.
Proper ventilation in the office is essential to prevent the spread of airborne viruses among staff.
The patient required mechanical ventilation after the surgery to ensure adequate oxygen levels while the anesthesia wore off.
Borrowed from Middle French ventilation, from Old French ventilacion, from Late Latin ventilatio, from Latin ventilo. Morphologically ventilate + -ion.
Uncountable when referring to the general process of air exchange; occasionally countable in medical contexts when referring to specific methods.