ventilator

noun

ven·​ti·​la·​tor ˈven-tə-ˌlā-tər How to pronounce ventilator (audio)
plural ventilators
: something or someone that ventilates: such as
a
: a device for introducing fresh air or expelling foul or stagnant air
b
: a device for maintaining artificial respiration
especially : a mechanized device that enables the delivery or movement of air and oxygen into the lungs of a patient whose breathing has ceased, is failing, or is inadequate : mechanical ventilator

Note: Modern, computerized mechanical ventilators typically monitor and customize gas delivery, maintain a constant pressure in the lungs to prevent the alveoli from collapsing, and deliver air and oxygen to the lungs by way of an endotracheal tube.

Examples of ventilator in a Sentence

The patient was put on a ventilator.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
When Cunningham was airlifted to Research Medical Hospital on Wednesday night, he was put on a ventilator, his aunt said. Laura Bauer, Kansas City Star, 11 Apr. 2025 He was taken to Aarhus University Hospital, where he was placed on a ventilator and subsequently diagnosed with an acute brain illness. Jordan Campbell, New York Times, 6 Apr. 2025 The infant was taken in a police cruiser to the hospital where he was listed in critical condition and placed on a ventilator, the warrant affidavit said. Justin Muszynski, Hartford Courant, 2 Apr. 2025 States called for additional ventilators, masks and other equipment to treat the increasing number of cases. Bret Baier, Fox News, 13 Mar. 2025 See All Example Sentences for ventilator

Word History

Etymology

ventilate + -or entry 1 (perhaps after Latin ventilātor "winnower")

First Known Use

1743, in the meaning defined above

Time Traveler
The first known use of ventilator was in 1743

Browse Nearby Words

Cite this Entry

“Ventilator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ventilator. Accessed 22 Apr. 2025.

Kids Definition

ventilator

noun
ven·​ti·​la·​tor ˈvent-ᵊl-ˌāt-ər How to pronounce ventilator (audio)
1
: a device for letting in fresh air or driving out bad or stale air
2

Medical Definition

ventilator

noun
ven·​ti·​la·​tor ˈvent-ᵊl-ˌāt-ər How to pronounce ventilator (audio)
: a device for maintaining artificial respiration
especially : a mechanized device that enables the delivery or movement of air and oxygen into the lungs of a patient whose breathing has ceased, is failing, or is inadequate : mechanical ventilator

Note: Modern, computerized mechanical ventilators typically monitor and customize gas delivery, maintain a constant pressure in the lungs to prevent the alveoli from collapsing, and deliver air and oxygen to the lungs by way of an endotracheal tube.

More from Merriam-Webster on ventilator

Last Updated: - Updated example sentences
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