Medical Definition of ASD

autism spectrum disorder; autistic spectrum disorder In 1994, diagnosticians adopted the term autism spectrum disorder (ASD), which also includes children with impaired social skills but not necessarily severe intellectual disabilities or language delays.— Melinda Beck, The Wall Street Journal, 2 Feb. 2010 Autism or an autistic spectrum disorder (ASD) may affect 1 in every 170 children. The disorders are characterized by a child's failure to develop normal social interaction as well as various language, thought, and movement problems.Science News, 3 June 2006

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