ventilation

Meanings

1. 1
   noun

   The process of letting fresh air into a room or building and removing stale air.

   The basement had poor ventilation, so the air always felt damp and stuffy.

2. 2
   noun

   A system in a building that supplies and circulates fresh air.

   The engineers were constantly adjusting the ventilation in the office.

3. 3
   noun

   The process of breathing in air and breathing out, especially with medical help.

   The injured man needed mechanical ventilation to keep him breathing.

Borrowed from Middle French ventilation, from Old French ventilacion, from Late Latin ventilatio, from Latin ventilo. Morphologically ventilate + -ion.

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