" autistic disorder "

[Noun]  | "autistic disorder" 

1: a neurodevelopmental disorder that is characterized by severely impaired social interaction, repetitive patterns of behavior, and restricted interests, that is typically accompanied by speech or cognitive impairments, and that is now diagnosed as autism spectrum disorder

Origin: 1951 ;

[Noun]  | "autism spectrum disorder" 

1: a neurodevelopmental disorder that typically appears by age two, that is variable in expression but is usually diagnosed by persistent impairments in social interaction and communication and by stereotyped patterns of behavior, activities, or interests, and that may be accompanied by cognitive or language impairments : autism, asd

Origin: 1981 ;