attention deficit hyperactivity disorder

American  

[uh-ten-shuhn def-uh-sit hahy-per-ak-tiv-i-tee dis-awr-der] / əˈtɛn ʃən ˈdɛf ə sɪt ˌhaɪ pər ækˈtɪv ɪ ti dɪsˌɔr dər /

noun

1. ADHD.

---

attention deficit hyperactivity disorder British  

noun

1.  ADHD.  a form of attention deficit disorder in which hyperactivity is a prominent symptom

---

attention deficit hyperactivity disorder Scientific  

1. A syndrome of disordered behavior, usually diagnosed in childhood, characterized by a persistent pattern of impulsiveness, inattentiveness, and sometimes hyperactivity that interferes with academic, occupational, or social performance.

2. Also called attention deficit disorder

---

Etymology

Origin of attention deficit hyperactivity disorder

First recorded in 1985–90

Example Sentences

See Examples For:

attention deficit hyperactivity disorder

There might be coaches who could help with issues like attention deficit hyperactivity disorder or therapists she could talk to about her mental health.

From MarketWatch ● Jul. 29, 2026

The plaintiffs argue that Tylenol use during pregnancy can lead to autism or attention deficit hyperactivity disorder in children.

From Barron's ● Jul. 13, 2026

Their claim that acetaminophen—the main active ingredient in Tylenol—can cause autism and attention deficit hyperactivity disorder if taken during pregnancy was rejected in federal multi-district litigation in 2023.

From The Wall Street Journal ● Oct. 29, 2025

In addition to the 30% risk of schizophrenia or psychosis, people with the syndrome can also have autism or attention deficit hyperactivity disorder, which is why these conditions were included in the comparison groups.

From Science Daily ● Apr. 11, 2024

Gabriel said he was diagnosed with attention deficit hyperactivity disorder as a child, and his own son has the same neurodevelopmental disorder.

From Los Angeles Times ● Mar. 12, 2024