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Mongolian idiocy

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noun (often lowercase)Pathology.
(no longer in technical use; now considered offensive) Down syndrome.
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Which of the following nouns has an irregular plural form?

Origin of Mongolian idiocy

First recorded in 1890–95

OTHER WORDS FROM Mongolian idiocy

Mongolian idiot, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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