ventilation

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noun ven·ti·la·tion \ˌven-tə-ˈlā-shən\

Definition of ventilation

  1. 1 :  the act or process of ventilating

  2. 2a :  circulation of air a room with good ventilationb :  the circulation and exchange of gases in the lungs or gills that is basic to respiration

  3. 3 :  a system or means of providing fresh air

Recent Examples of ventilation from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ventilation'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of ventilation

borrowed from Latin ventilātiōn-, ventilātiō, from ventilāre “to expose to the air, ventilate” + -tiōn-, -tiō, suffix of action nouns


VENTILATION Defined for Kids

ventilation

play
noun ven·ti·la·tion \ˌven-tə-ˈlā-shən\

Definition of ventilation for Students

  1. 1 :  the act or process of ventilating

  2. 2 :  a system or means of providing fresh air


Medical Dictionary

ventilation

play
noun ven·ti·la·tion \ˌvent-əl-ˈā-shən\

Medical Definition of ventilation

  1. 1:  the act or process of ventilating

  2. 2:  the circulation and exchange of gases in the lungs or gills that is basic to respiration



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