autism spectrum disorder
US /ˈɔː.tɪ.zəm ˈspek.trəm dɪsˈɔːr.dər/
UK /ˈɔː.tɪ.zəm ˈspek.trəm dɪsˈɔːr.dər/

1.
a developmental disorder of variable severity that is characterized by difficulty in social interaction and communication and by restricted or repetitive patterns of thought and behavior.
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Early intervention is crucial for children with autism spectrum disorder.
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Understanding autism spectrum disorder helps in providing better support.