attention deficit disorder
noun(attention deficit disorder)
a developmental disorder that is marked especially by persistent symptoms of inattention (such as distractibility, forgetfulness, or disorganization) or by symptoms of hyperactivity and impulsivity (such as fidgeting, speaking out of turn, or restlessness) or by symptoms of all three and that is not caused by any serious underlying physical or mental disorder —abbreviation ADD
attention deficit disorder
noun(attention deficit disorder)
attention deficit disorder —abbreviation ADHD