Definition of autism
: a variable developmental disorder that appears by age three and is characterized especially by difficulties in forming and maintaining social relationships, by impairment of the ability to communicate verbally or nonverbally, and by repetitive behavior patterns and restricted interests and activities … the chief diagnostic signs of autism are social isolation, lack of eye contact, poor language capacity and absence of empathy …— Vilayanur S. Ramachandran et al.
— called also autistic disorder— see autism spectrum disorder
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