English Dictionary

HYPERSOMNIA

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 Dictionary entry overview: What does hypersomnia mean? 

HYPERSOMNIA (noun)
  The noun HYPERSOMNIA has 1 sense:

1. an inability to stay awakeplay

  Familiarity information: HYPERSOMNIA used as a noun is very rare.


 Dictionary entry details 


HYPERSOMNIA (noun)


Sense 1

Meaning:

An inability to stay awake

Classified under:

Nouns denoting stable states of affairs

Hypernyms ("hypersomnia" is a kind of...):

sleep disorder (a disturbance of the normal sleep pattern)

Hyponyms (each of the following is a kind of "hypersomnia"):

catalepsy (a trancelike state with loss of voluntary motion and failure to react to stimuli)

narcolepsy (a sleep disorder characterized by sudden and uncontrollable episodes of deep sleep)

Antonym:

insomnia (an inability to sleep; chronic sleeplessness)


 Context examples 


Clinical signs include snoring, insomnia or hypersomnia, difficulty concentrating and fatigue.

(Central Sleep Apnea Syndrome, NCI Thesaurus)

During periods of depressed mood, at least 2 of the following additional symptoms are present: poor appetite or overeating, insomnia or hypersomnia, low energy or fatigue, low self esteem, poor concentration or difficulty making decisions, and feelings of hopelessness.

(Dysthymic Disorder, NLM, Medical Subject Headings)



 Learn English with... Proverbs 
"Measure twice, cut once." (English proverb)

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