ventilation

[ven-tl-ey-shuhn]
noun
1.
the act of ventilating.
2.
the state of being ventilated.
3.
facilities or equipment for providing ventilation.

Origin:
1425–75; late Middle English ventilacioun < Latin ventilātiōn- (stem of ventilātiō), equivalent to ventilāt(us) (see ventilate) + -iōn- -ion

ventilatory [ven-tl-uh-tawr-ee, -tohr-ee] , adjective
nonventilation, noun
overventilation, noun
reventilation, noun
underventilation, noun
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World English Dictionary
ventilation (ˌvɛntɪˈleɪʃən)
 
n
1.  the act or process of ventilating or the state of being ventilated
2.  an installation in a building that provides a supply of fresh air
 
'ventilative
 
adj
 
'ventilatory
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

ventilation ven·ti·la·tion (věn'tl-ā'shən)
n.

  1. The replacement of fresh air or gas for stale or noxious air or gas in a space.

  2. See respiration.

  3. Aeration or oxygenation, as of blood.

  4. The verbal expression of feelings or emotions in psychotherapy.


ven'ti·late' v.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Move fresh air into your home with proper ventilation.
Ventilation is not exactly the first thing that comes to mind.
Ventilation below ground is poor and deadly accidents occur almost daily.
The dimly lit room has low ceilings and poor ventilation.
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