minimal brain damage vs attention deficit hyperactivity disorder

minimal brain damage and attention deficit hyperactivity disorder both are nouns.

Word	Noun	Adjective	Verb	Adverb
minimal brain damage	Yes	No	No	No
attention deficit hyperactivity disorder	Yes	No	No	No

As nouns, minimal brain damage and attention deficit hyperactivity disorder are synonyms defined as:

minimal brain damage and attention deficit hyperactivity disorder: a condition (mostly in boys) characterized by behavioral and learning disorders

Other synonyms of minimal brain damage include ADD, ADHD, attention deficit disorder, hyperkinetic syndrome, MBD, minimal brain dysfunction.

minimal brain damage (noun)	attention deficit hyperactivity disorder (noun)
a condition (mostly in boys) characterized by behavioral and learning disorders	a condition (mostly in boys) characterized by behavioral and learning disorders