Definition of Torture-Stanford Encyclopedia of Philosophy

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1. Definition of Torture

Torture includes such practices as searing with hot irons, burning at the stake, electric shock treatment to the genitals, cutting out parts of the body, e.g. tongue, entrails or genitals,
severe beatings, suspending by the legs with arms tied behind back, applying thumbscrews, inserting a needle under the fingernails, drilling through an unanesthetized tooth, making a person crouch for hours in the ‘Z’ position, waterboarding (submersion in water or dousing to produce the sensation of drowning), and denying food, water or sleep for days or weeks on end.<3>

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http://plato.stanford.edu/entries/torture/