under ventilation

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
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