Abnormally prolonged inability to sleep, esp. when chronic.
noun
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Other Word Forms
Noun
Singular:
insomnia
Plural:
insomnias
Origin of insomnia
Latin īnsomniafromīnsomnissleeplessin-notin–1somnussleepswep- in Indo-European roots
From
American Heritage Dictionary of the English Language, 5th Edition
From Latinin- (“without”) + somnus (“sleep”) + -ia.
From
Wiktionary
Insomnia Sentence Examples
Insomnia was a blessing from such darkness.
Insomnia may occur due to an overactive mind that won't shut down for sleep.
Anxiety can cause insomnia, making jet lag worse.
The conditions in which bromides are most frequently used are insomnia, epilepsy, whooping-cough, delirium tremens, asthma, migraine, laryngismus stridulus, the symptoms often attendant upon the climacteric in women, hysteria, neuralgia, certain nervous disorders of the heart, strychnine poisoning, nymphomania and spermatorrhoea.
Health problems associated with severe insomnia are more than significant, with mortality rates looming in studies conducted by Penn State College of Medicine and the California Pacific Medical Center in San Francisco, respectively.