idiopathic hypersomnia
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English[edit]
Noun[edit]
idiopathic hypersomnia (countable and uncountable, plural idiopathic hypersomnias)
- (medicine) A neurological disorder characterized primarily by excessive need for sleep, even during the day, without obvious external cause such as a physical brain injury.
Further reading[edit]
- idiopathic hypersomnia on Wikipedia.Wikipedia