Medical Dictionary

hypersomnia


hypersomnia

noun hy·per·som·nia \-ˈsäm-nē-ə\

Definition of HYPERSOMNIA

1
:  sleep of excessive depth or duration
2
:  the condition of sleeping for excessive periods at intervals with intervening periods of normal duration of sleeping and waking—compare narcolepsy
March 03, 2015
thanatology Hear it
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