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English definition of “attention deficit hyperactivity disorder”

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attention deficit hyperactivity disorder

noun [U] uk   ( abbreviation ADHD) UK us  
a condition in which someone, especially a child, is often in a state of activity or excitement and unable to direct their attention towards what they are doing Note: This condition is usually called 'attention deficit disorder' in the US.
Translations of “attention deficit hyperactivity disorder”
in Chinese (Traditional) (尤指兒童的)注意力缺乏,過度活躍症,過動症…
in Chinese (Simplified) (尤指儿童的)注意力缺乏多动障碍…
(Definition of attention deficit hyperactivity disorder from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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