asphyxia
Suffocation; a lack of oxygen that produces a potentially lethal build-up of carbon dioxide waste in the tissues.
Asphyxia may arise from any one of a number of causes, including inhalation of smoke or poisonous gases, obstruction of the windpipe (by water, food, vomit, or a foreign object), strangulation, or smothering. If it is not quickly relieved, brain damage or death ensues.
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