Definition of "ventilator" in Anglais

noun

1. A device that circulates fresh air and expels stale or noxious air.

2. (medicine) A machine that moves breathable air into and out of the lungs of a patient who is unable to breathe sufficiently.

3. (figurative) Some behaviour or happening that relieves a tense atmosphere or situation.

4. (obsolete, slang) A play or an actor so bad as to empty the theater.