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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

Explanation

Autism is a neurological condition that's marked by differences in learning styles, passionate interests in specific subjects, repetitive motion, and sometimes difficulty with language and communication. The word autism is taken directly from the Greek root auto, meaning “self.” Because autistic people may display a wide variety of characteristics, autism is defined as a range of conditions, known as the autism spectrum. This spectrum varies from those who have a hard time with social interaction to people who aren't able to speak. In some cases, autism is a diagnosis given by a doctor, while in others it's embraced by a person who self-identifies as autistic. A person who has autism is described as autistic.

Keep Reading on Vocabulary.com

Vocabulary lists containing autism

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.

All three have autism, and one has severe attention-deficit hyperactivity disorder.

From Los Angeles Times • Apr. 13, 2026

His comments were part of a wider push by the administration to look for causes and more effective treatments for autism symptoms, which affect one out of every 31 children in the U.S.

From The Wall Street Journal • Apr. 9, 2026

Senior FDA officials said they examined scientific studies to see whether they could approve leucovorin to treat autism, but didn’t come up with enough strong scientific evidence to do so.

From The Wall Street Journal • Apr. 9, 2026

Nearly one-third of respondents incorrectly thought that certain conditions, including autism or epilepsy, would prevent someone from donating.

From Science Daily • Apr. 8, 2026

This chapter addresses the issue of several types of musical inclusion, including music and gender, and music for children with autism, ADD/ADHD, learning and physical disabilities.

From "Music and the Child" by Natalie Sarrazin