idiopathic hypersomnia

noun

A neurological disorder characterized primarily by excessive need for sleep, even during the day, without obvious external cause such as a physical brain injury.

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Meanings

nounidiopathic hypersomnia (countable and uncountable, plural idiopathic hypersomnias)

plural idiopathic hypersomnias

  1. countableuncountablemedicineA neurological disorder characterized primarily by excessive need for sleep, even during the day, without obvious external cause such as a physical brain injury.
Cite this entry
APA

idiopathic hypersomnia. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/idiopathic%20hypersomnia

MLA

“idiopathic hypersomnia.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/idiopathic%20hypersomnia. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “idiopathic hypersomnia,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/idiopathic%20hypersomnia.

Source: idiopathic hypersomnia on Wiktionary, CC BY-SA 4.0.