autism
Americannoun
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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.
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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.
noun
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
Derived Forms
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.
Vocabulary lists containing autism
Rules
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Mockingbird
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Psychological Conditions and Disorders
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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.
She’s on the autism spectrum, and really loves art and making stuff.
From Los Angeles Times • Jun. 5, 2026
O'Brien said the "unbelievable" design had been chosen as some children with autism preferred dark spaces.
From BBC • Jun. 4, 2026
"For decades, we've observed tremendous variability in how autism manifests, but we lacked direct evidence that these differences reflected distinct underlying biology," said Dr. Alessandro Gozzi, at Italian Institute of Technology.
From Science Daily • Jun. 3, 2026
For some employers, autism therapy has become an even bigger expense than routine doctor visits and chemotherapy, according to SmartLight Analytics, a data firm that monitors medical costs for employers.
From The Wall Street Journal • Jun. 2, 2026
He then had people without autism watch the movie as well, and he compared Peter’s eye movements with theirs.
From "Blink" by Malcolm Gladwell
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.