asphyxia

noun

as·​phyx·​ia as-ˈfik-sē-ə 

əs-

1

: a lack of oxygen or excess of carbon dioxide in the body that results in unconsciousness and often death and is usually caused by interruption of breathing or inadequate oxygen supply

2

: the state of being stifled or suppressed

As a patient in hospital I felt both anguish and asphyxia—the anguish of being confronted with dissolution, and asphyxia because I could not be heard.

—Oliver Sacks

Examples of asphyxia in a Sentence

The cause of death was asphyxia.

Recent Examples on the Web

An autopsy revealed the cause of death as mechanical asphyxia and the manner of death as homicide. —Landon Mion, Fox News, 10 Mar. 2025

Dr Adnan Radi, a medic at Al Awda Hospital, in northern Gaza, told the agency that most of the babies delivered by staff have severely low birthweight and are dying of perinatal asphyxia. —Ibrahim Dahman, CNN, 28 Jan. 2025

High levels of intoxication can lead to tripping and falling down, and fatal accidents were reported due to asphyxia. —Jasmine Mendez, Los Angeles Times, 13 Dec. 2024

The teen’s cause of death was determined to be homicidal asphyxia, or suffocation. —Ellen Moynihan, New York Daily News, 23 Feb. 2025

Word History

Etymology

New Latin, from Greek, stopping of the pulse, from a- + sphyzein to throb

First Known Use

1778, in the meaning defined at sense 1

Kids Definition

asphyxia

noun

as·​phyx·​ia as-ˈfik-sē-ə 

: a lack of oxygen or excess of carbon dioxide in the body usually caused by interruption of breathing or insufficient oxygen supply and resulting in unconsciousness and often death

Medical Definition

asphyxia

noun

as·​phyx·​ia as-ˈfik-sē-ə, əs- 

: a lack of oxygen or excess of carbon dioxide in the body that is usually caused by interruption of breathing and that causes unconsciousness compare suffocation

asphyxial

-sē-əl 

adjective