asphyxiate

[as-fik-see-eyt]
verb (used with object), asphyxiated, asphyxiating.
1.
to produce asphyxia in.
2.
to cause to die or lose consciousness by impairing normal breathing, as by gas or other noxious agents; choke; suffocate; smother.
verb (used without object), asphyxiated, asphyxiating.
3.
to become asphyxiated.

Origin:
1830–40; asphyxi(a) + -ate1

asphyxiation, noun
asphyxiator, noun

asphyxia, asphyxiation.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
asphyxiate (æsˈfɪksɪˌeɪt)
 
vb
to cause asphyxia in or undergo asphyxia; smother; suffocate
 
asphyxi'ation
 
n
 
as'phyxiator
 
n

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Etymonline
Word Origin & History

asphyxiate
1836, "to suffocate" (someone or something), from Mod.L. asphyxia, from Gk. asphyxia (see asphyxia)

asphyxiation
1866, noun of action from asphyxiate (q.v.).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

asphyxiate as·phyx·i·ate (ās-fĭk'sē-āt')
v. as·phyx·i·at·ed, as·phyx·i·at·ing, as·phyx·i·ates
To induce asphyxia.


as·phyx'i·a'tion n.
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
Three people inside died from asphyxiation and four others were badly injured.
Some studies suggest that prisoners are sometimes inadequately sedated, and
  perhaps die in silent agony from asphyxiation.
Those who died suffered from asphyxiation and heatstroke, health officials here
  said.
Autopsies of seventeen victims showed that they had died from asphyxiation by
  inhaled ash.
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