Autism Definition

ôtĭzəm
noun
A pervasive developmental disorder characterized by severe deficits in social interaction and communication, by an extremely limited range of activities and interests, and often by the presence of repetitive, stereotyped behaviors.
American Heritage
A developmental disorder characterized variously by impaired social interaction, difficulties in communicating, problems with seeing and hearing, repetitive behavior, etc.
Webster's New World
Autism spectrum disorder, especially a more severe form of the disorder characterized by significant impairments in social interaction and communication, highly repetitive behavior, and strong resistance to change.
American Heritage Medicine

(clinical psychology) Bio-neurological disorder that is observable in early childhood with symptoms of abnormal self-absorption, characterised by lack of response to other humans and by limited ability or disinclination to communicate and socialize.

Wiktionary
Synonyms:

Other Word Forms of Autism

Noun

Singular:
autism
Plural:
autisms

Origin of Autism

  • Coined in 1912 by Swiss psychiatrist Paul Bleuler (1857-1939) from Latin autismus, from Ancient Greek αὐτός (autos, “self”).

    From Wiktionary

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