Read Edit View history 嗜睡症 shìshuìzhèng hypersomnia Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 嗜睡症 · shìshuìzhèng · hypersomnia 2026/03/04 嗜睡症 shìshuìzhèng hypersomnia A medical condition characterized by excessive sleepiness or abnormally long periods of sleep. 长期患有嗜睡症的人在白天很难保持清醒。 noun created sense Mar 4, 2026, 02:25 AM