What does "adhd" mean?

Initialism of attention deficit hyperactivity disorder.

What is a synonym for "adhd"?

Common synonyms include: abbreviation, add, adhd-associated, adhd-like, adhd-related, adhd-specific.

Pronounced //ˌeɪ diː ˌeɪtʃ ˈdiː//.

/ˌeɪ diː ˌeɪtʃ ˈdiː/ adj, noun, slang

adj, noun, slang ·Moderate ·High school level

Noun

1
Initialism of attention deficit hyperactivity disorder. abbreviation, alt-of, initialism, uncountable
"Men diagnosed with ADHD had a reduction in life expectancy by 4 ½ years to nine years, while women’s life expectancy was shortened by 6 ½ years to 11 years, according to the study published Thursday in The British Journal of Psychiatry."
2
a condition characterized by hyperactivity, impulsivity, and emotional dysregulation wordnet

Adjective

1
as of or relating to attention deficit hyperactivity disorder informal
"an ADHD person"

"Is this kid autistic or does he have ADHD? His behavior is hard to characterize either way."