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idiocy
idiocy Historically, idiocy referred to a severe form of mental deficiency, understood as a marked lack of ordinary mental abilities caused by disease or failed development of the central nervous system.
Historically, idiocy referred to a severe form of mental deficiency, understood as a marked lack of ordinary mental abilities caused by disease or failed development of the central nervous system. The term was used especially for the most extreme cases, in contrast to milder conditions then described as feeble-mindedness or mental deficiency.