attention deficit disorder
noun/əˌtenʃn ˈdefɪsɪt dɪsɔːdə(r)/
/əˌtenʃn ˈdefɪsɪt dɪsɔːrdər/
(also attention deficit hyperactivity disorder)
[uncountable] (abbreviation ADD, ADHD)
- a condition, usually beginning in childhood, that makes it difficult for somebody to pay attention and concentrate, and may make it difficult for them to control their behaviour
通常从童年开始的一种状况，使人难以集中注意力，并可能使他们难以控制自己的行为