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English definition of “retardation”

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retardation

noun [U] uk   /ˌriː.tɑːˈdeɪ.ʃən/ us    /-tɑːr-/ formal
slow development, or development that is slower than it should be: Severe iron deficiency can cause developmental delay and growth retardation.
Translations of “retardation”
in Chinese (Traditional) 遲緩, 阻滯, 延遲…
in Chinese (Simplified) 迟缓, 阻滞, 延迟…
(Definition of retardation from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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