• A disorder beginning in childhood whose essential features are persistent impairment in reciprocal social communication and social interaction, and restricted, repetitive patterns of behavior, interests, or activities. These symptoms may limit or impair everyday functioning. (From DSM-5)
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• A disorder most often diagnosed in the pediatric years in which the individual displays marked impairment in social interaction and a repetitive, stereotyped pattern of behavior. The individual, however, displays no delay in language or cognitive development, which differentiates Asperger Syndrome from autism.
  NCI
  U.S. National Cancer Institute, 2021
• Neuropsychiatric disorder whose major manifestation is an inability to interact socially; other features include poor verbal and motor skills, singlemindedness, and social withdrawal.
  CRISP Thesaurus
  National Institutes of Health, 2006
• Asperger syndrome (also referred to as Asperger disorder) is a term applied to a form of autism spectrum disorder (ASD) characterized by persistent impairment in social interactions and by repetitive behavior patterns and restricted interests. Although in the past this syndrome was commonly considered a separate diagnosis, it is now...
  Medscape
  WebMD, 2025
• Asperger syndrome is part of the autism spectrum disorder (ASD), a group of disorders that affects the development of social and communication skills. Unlike many children with ASD, children with Asperger syndrome do not have early language delays, and often have well developed language skills and normal to above average intelligence....
  NIH Genetic and Rare Diseases
  National Center for Advancing Translational Sciences
• Asperger syndrome, a neurobiological disorder characterized by autism-like abnormalities in social interactions but with normal intelligence and language acquisition. The disorder is named for Austrian physician Hans Asperger, who first described the symptoms in 1944 as belonging to a condition he...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2025