ven·​ti·​la·​tion | \ ˌven-tə-ˈlā-shən \

Definition of ventilation

1 : the act or process of ventilating
2a : circulation of air a room with good ventilation
b : the circulation and exchange of gases in the lungs or gills that is basic to respiration
3 : a system or means of providing fresh air

Examples of ventilation in a Sentence

Recent Examples on the Web

Now, equipped with an air filtration and ventilation system, new barriers and a viewing platform, as well as restored wall paintings, the tomb is ready for the public once again. Chloe Foussianes, Town & Country, "King Tut's Tomb Is Reopening—And This Time, It's Tourist-Proof," 1 Feb. 2019 Because the building’s midsection is consumed by three levels of parking, most of the Bainbridge and Leithgow Street facades will have no glass in the window openings, to allow for ventilation. Inga Saffron,, "In Queen Village, life imitates art, but with a Target store and too much parking," 24 May 2018 Look for ventilation around the salon and near each station. Allison Carey,, "New year, new nails, what's new in manicures: Style Resolutions 2018 (photos)," 8 Jan. 2018 Rules include placing the batteries in separate rooms with automatic sprinklers, ventilation and smoke detection systems. Mark Chediak,, "Boom in giant batteries hits another roadblock: Cities' fear of fire," 18 May 2018 Photovoltaic panels on the roof and natural greenery inside the terminal help keep the air fresh and lower heating and ventilation costs. Harriet Baskas, USA TODAY, "First look: Seoul Incheon Airport’s new Terminal 2 big on high tech, art," 22 Jan. 2018 Rainbow also will spend $18 million to fully enclose the trash facility and install a ventilation and filtration system to help reduce noise and odors. Priscella Vega,, "Demolition clears way for new multipurpose room at H.B.'s Oak View Elementary School," 5 July 2018 Federal and state regulations exist to prevent the condition by requiring good ventilation of the mining area and measurement using dust monitors. Andrew Nusca, Fortune, "Black Lung Is a Growing Problem in Appalachia," 26 Mar. 2018 Hoped-for improvements in many areas from parking/student walkways to flood control to pool ventilation and others have been put on hold. Alec Johnson, Milwaukee Journal Sentinel, "Arrowhead School Board at-large seat incumbent faces challenge from 19-year-old AHS graduate," 19 Mar. 2018

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.

See More

First Known Use of ventilation

1519, in the meaning defined at sense 1

History and Etymology for ventilation

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

Keep scrolling for more

Learn More about ventilation

Share ventilation

Statistics for ventilation

Last Updated

11 Feb 2019

Look-up Popularity

Time Traveler for ventilation

The first known use of ventilation was in 1519

See more words from the same year

Keep scrolling for more

More Definitions for ventilation


ven·​ti·​la·​tion | \ ˌven-tə-ˈlā-shən \

Kids Definition of ventilation

1 : the act or process of ventilating
2 : a system or means of providing fresh air


ven·​ti·​la·​tion | \ ˌvent-ᵊl-ˈā-shən \

Medical Definition of ventilation

1 : the act or process of ventilating
2 : the circulation and exchange of gases in the lungs or gills that is basic to respiration

Keep scrolling for more

More from Merriam-Webster on ventilation

Rhyming Dictionary: Words that rhyme with ventilation

Spanish Central: Translation of ventilation

Nglish: Translation of ventilation for Spanish Speakers

Britannica English: Translation of ventilation for Arabic Speakers Encyclopedia article about ventilation

Comments on ventilation

What made you want to look up ventilation? Please tell us where you read or heard it (including the quote, if possible).


esteemed in general opinion

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
True or False

Test your knowledge - and maybe learn something along the way.

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!