[ven-tl-ey-shuh n]


the act of ventilating.
the state of being ventilated.
facilities or equipment for providing ventilation.

Origin of ventilation

1425–75; late Middle English ventilacioun < Latin ventilātiōn- (stem of ventilātiō), equivalent to ventilāt(us) (see ventilate) + -iōn- -ion
Related formsven·ti·la·to·ry [ven-tl-uh-tawr-ee, -tohr-ee] /ˈvɛn tl əˌtɔr i, -ˌtoʊr i/, adjectivenon·ven·ti·la·tion, nouno·ver·ven·ti·la·tion, nounre·ven·ti·la·tion, nounun·der·ven·ti·la·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for ventilation


Examples from the Web for ventilation

Contemporary Examples of ventilation

Historical Examples of ventilation

  • So nourishment, cleanliness, and ventilation are the main remedies.

  • Standing on tiptoe, I glued my eyes to the narrow slit which was our only ventilation.

  • Three small round holes had been pierced into the styles for ventilation.

    A Son of Hagar

    Sir Hall Caine

  • Except for a barred transom over the door, there was no means of ventilation.

  • All the heat used ought to be concerned in ventilation, and in that only.

    Rural Hygiene

    Henry N. Ogden

British Dictionary definitions for ventilation



the act or process of ventilating or the state of being ventilated
an installation in a building that provides a supply of fresh air
Derived Formsventilative, adjectiveventilatory, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ventilation

mid-15c., from Latin ventilationem (nominative ventilatio) "an exposing to the air," noun of action from past participle stem of ventilare (see ventilate).

Online Etymology Dictionary, © 2010 Douglas Harper

ventilation in Medicine




The replacement of fresh air or gas for stale or noxious air or gas in a space.
Aeration or oxygenation, as of blood.
The verbal expression of feelings or emotions in psychotherapy.
Related formsventi•late′ v.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.