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Retardation (3)
RETARDATION (3)

Definition: (US) The state of being backward in mental development.
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See perfect dullness (6).

See perfect dullard.
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See perfect imbecile (2).
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See perfect stammerer.
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See perfect atavism.
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See perfect learning difficulties.

See perfect learning disability.

See perfect learning curve.
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See perfect backwardness.
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See perfect retardation (1).

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