au ‧ tis ‧ m /ˈɔːtɪz ə m $ ˈɒː-/ BrE AmE noun [uncountable]
[ Date: 1900-2000 ; Language: Greek ; Origin: autos ; ⇨ ↑ auto- ]
a mental ↑ disorder (=problem) that makes people unable to communicate properly, or to form relationships
—autistic /ɔːˈtɪstɪk $ ɒː-/ adjective :
an autistic child