Definition of ventilation noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌventɪˈleɪʃn//
; NAmE NAmE//ˌventɪˈleɪʃn//
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the fact of allowing fresh air to enter and move around a room, building, etc. a ventilation shaft Make sure that there is adequate ventilation in the room before using the paint.