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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

n. An inability to stay awake.

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Usage examples (39)
  • About 9 to 10 percent have what is known as hypersomnia, meaning that they have excessive sleepiness, both at night and during the day.
  • About 90 percent had something known as hypersomnia, which means that they sleep too much at night.
  • People are more likely to have insomnia than hypersomnia.
  • Are there any proven treatments for hypersomnia, or excessive sleeping?
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