Definition of autism noun from the Oxford Advanced American Dictionary

 

autism

 noun
noun
NAmE//ˈɔˌtɪzəm//
 
[uncountable]
 
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a mental condition in which a person finds it very difficult to communicate or form relationships with others
NAmE//ɔˈtɪstɪk//
 
adjective autistic behavior/children
See the Oxford Advanced Learner's Dictionary entry: autism