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autism

American  
[aw-tiz-uhm] / ˈɔ tɪz əm /

noun

Psychiatry.
  1. a developmental disability of highly variable presentation, commonly characterized by social and communication differences, repetitive behaviors, intense specialized interests, and differences in sensory processing; autism spectrum disorder.

  2. Sometimes classic autism (no longer in clinical use) a developmental disability that commonly manifests in early childhood, characterized by repetitive or restricted behaviors, differences in understanding social interactions, and delayed development of linguistic and cognitive abilities: formerly contrasted with Asperger syndrome.


autism British  
/ ˈɔːtɪzəm /

noun

  1. psychiatry a developmental disorder whose symptoms include difficulty in responding conventionally to people and actions and limited use of communication

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

Rather than talking about an autistic or autistics , it is better to use phrases such as a person with autism and people with autism

Other Word Forms

  • autist noun
  • autistic adjective

Etymology

Origin of autism

First recorded in 1910–15, for an earlier sense; coined in 1944 by Austrian-American psychiatrist Leo Kanner (1894–1981), for the current sense (in the phrase infantile autism ); from German Autismus (in the earlier sense), from New Latin; aut- + -ism

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The company cared for 84 children with autism in 2023, the latest year of Medicaid data available to the Journal.

From The Wall Street Journal • Mar. 25, 2026

In 2024, Indiana set a flat rate of $68 an hour for routine autism therapy services rendered by the lower wage workers.

From The Wall Street Journal • Mar. 25, 2026

Sweet adds: "At Field Lane I have met the most amazing children who are developing empathy, understanding and acceptance - they are learning about autism and physical disability."

From BBC • Mar. 24, 2026

Islas, who said he has been diagnosed with autism, maintained he wasn’t doing anything combative that night.

From Los Angeles Times • Mar. 19, 2026

In other words, on the most basic neurological level, for someone with autism, a face is just another object.

From "Blink" by Malcolm Gladwell