ven·ti·la·tion

[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

ven·ti·la·to·ry [ven-tl-uh-tawr-ee, -tohr-ee] , adjective
non·ven·ti·la·tion, noun
o·ver·ven·ti·la·tion, noun
re·ven·ti·la·tion, noun
un·der·ven·ti·la·tion, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To ventilation
00:10
Ventilation is always a great word to know.
So is interrobang. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a gadget; dingus; thingumbob.
Collins
World English Dictionary
ventilation (ˌvɛntɪˈleɪʃən) [Click for IPA pronunciation guide]
 
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.
Good ventilation, the hood is roomy enough for a helmet, and the waist can snap
  inside to make a snug fit.
The new greenhouse will feature automated temperature control, ventilation,
  solar shading and watering.
Some people inside waved pieces of cloth through ventilation shafts, trying to
  alert rescuers.
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