Last Updated：2025/12/07

(medicine) A neurological disorder characterized primarily by excessive sleep, even during the day.

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idiopathic hypersomnia

Source Word

idiopathic hypersomnia

Noun

countable uncountable

(medicine) A neurological disorder characterized primarily by excessive sleep, even during the day.

Japanese Meaning

特発性過眠症：原因不明ながら、主に日中に極端な眠気が現れる神経系の障害

After months of unexplained fatigue and long naps, she was diagnosed with idiopathic hypersomnia.

何か月も原因不明の倦怠感と長い昼寝が続いた後、彼女は特発性過眠症と診断された。

Sense（1）

(medicine) A neurological disorder characterized primarily by excessive sleep, even during the day.

idiopathic hypersomnias

（ plural ）