- a person or thing that ventilates.
- a contrivance or opening for replacing foul or stagnant air with fresh air.
- an apparatus to produce artificial respiration, moving air into and out of a patient’s lungs: The patient presented with signs of respiratory failure and was placed immediately on a ventilator.
- an opening or device, such as a fan, used to ventilate a room, building, etc
- a machine that maintains a flow of air into and out of the lungs of a patient who is unable to breathe normally
