idiocy(redirected from idiocies)
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old term for profound mental retardation, now considered offensive.
amaurotic familial idiocy former name for neuronal ceroid-lipofuscinosis.
mongolian idiocy former name for Down syndrome or the marked mental retardation associated with it. The term is now considered offensive.
n. pl. idio·cies
1. Extreme folly or stupidity.
2. A foolish or stupid utterance or deed.