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Reference.org
Poisoning
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<p>Poisoning is the harmful effect which occurs when <a href="/facts/Toxicity/qa96rs60">toxic</a> substances are introduced into the body. The term "poisoning" is a derivative of <a href="/facts/Poison/XIQjhpsw">poison</a>, a term describing any chemical substance that may harm or kill a living organism upon <a href="/facts/Ingestion/VIsgnlnA">ingestion</a>. Poisoning can be brought on by swallowing, inhaling, injecting or absorbing toxins through the skin. <a href="/facts/Toxicology/L6XHRIJH">Toxicology</a> is the practice and study of symptoms, mechanisms, diagnoses, and treatments correlated to poisoning. </p>