Longman Dictionary of Contemporary English homepage

ventilator

 noun
     
Related topics: Hospital, Buildings
ven‧ti‧la‧tor [countable]
1TBB a piece of equipment that puts fresh air into a room, building etc [↪ fan]
2MH a piece of equipment that pumps air into and out of someone's lungs
on a ventilator
He was put on a ventilator but died two hours later.
Definition from the Longman Dictionary of Contemporary English
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