Angelman syndrome

noun

A neurogenetic disorder characterized by intellectual and developmental delay, sleep disturbance, seizures, jerky movements (especially hand-flapping), and frequent laughter or smiling.

Meanings

nounAngelman syndrome (uncountable)
  1. uncountablemedicineA neurogenetic disorder characterized by intellectual and developmental delay, sleep disturbance, seizures, jerky movements (especially hand-flapping), and frequent laughter or smiling.

    Synonyms: happy puppet syndrome

Synonyms & antonyms

nounA neurogenetic disorder characterized by intellectual and developmental delay, sleep disturbance, seizures, jerky movements (especially hand-flapping), and frequent laughter or smiling.

Origin

After Dr. Harry Angelman, who first described it in 1965.

Full word history & related roots →

Translations

Portuguese síndrome de Angelman
  • síndrome de Angelmanneurogenetic disorder
Cite this entry
APA

Angelman syndrome. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/Angelman%20syndrome

MLA

“Angelman syndrome.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Angelman%20syndrome. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “Angelman syndrome,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/Angelman%20syndrome.

Source: Angelman syndrome on Wiktionary, CC BY-SA 4.0.