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M'Naghten test

American  
[muhk-nawt-n] / məkˈnɔt n /

noun

  1. a rule that defines a person as legally insane when that person cannot distinguish right from wrong.


Etymology

Origin of M'Naghten test

After Daniel M'Naghten (died 1865), defendant in a murder case adjudicated in England in 1843


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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The M’Naghten test was used in most U.S. courts well into the 20th century, before the American Law Institute, a think tank, proposed a more liberal rule.

From Washington Post ● Sep. 4, 2019

A supplement to the M'Naghten test added "irresistible impulse" but neither test seemed to fit Sheller.

From Time Magazine Archive

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