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English definition of “ventilator”

ventilator

noun [C]     /ˈven.tɪ.leɪ.tər/ US  /-t̬əl.eɪ.ɚ/
an opening or a device that allows fresh air to come into a closed spaceVents and ventilation a machine that helps people breathe correctly by allowing air to flow in and out of their lungs: He was brought into intensive care shortly after the crash and immediately put on a ventilator.Medical and surgical equipment
(Definition of ventilator noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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