ventilation
noun
[ ˌvɛntɪˈleɪʃ(ə)n ]
• the provision of fresh air to a room, building, etc.
• "ventilation of the mines had long been mechanized"
• public discussion or examination of an opinion, issue, or complaint.
Origin:
late Middle English (in the sense ‘current of air’): from Old French, or from Latin ventilatio(n- ), from the verb ventilare (see ventilate). ventilation (sense 1) dates from the mid 17th century.
