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Definitions

attention deficit disorder

[uh-ten-shuhn def-uh-sit dis-awr-der] / əˈtɛn ʃən ˈdɛf ə sɪt dɪsˌɔr dər /

NOUN

learning disability

Synonyms

WEAK

ADHD add hyperactiveness hyperactivity short attention span

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.

In her early teens, her parents say, she began showing signs of borderline personality disorder, attention deficit disorder and depression.

From Los Angeles Times • Nov. 21, 2025

There remains no settled science on a causal link between Tylenol and autism or attention deficit disorder.

From The Wall Street Journal • Oct. 29, 2025

Figures were also far higher for pupils with additional learning needs, including those with attention deficit disorder.

From BBC • Dec. 6, 2024

The company wanted to exclude the opinions of experts in a multijurisdictional against it on whether in-utero exposure to acetaminophen, the pain reliever used in Tylenol, could lead to autism or attention deficit disorder.

From Seattle Times • Dec. 19, 2023

But Mr. Brunner expected me to be as good as everybody else, despite the fact that I have dyslexia and attention deficit disorder and I had never made above a C— in my life.

From "The Lightning Thief" by Rick Riordan