Simple Definition of insomnia
: the condition of not being able to sleep
Full Definition of insomnia
: prolonged and usually abnormal inability to get enough sleep
Examples of insomnia
<has suffered from insomnia virtually his entire life>
Origin of insomnia
Latin, from insomnis sleepless, from in- + somnus sleep — more at somnolent
First Known Use: circa 1623
Medical Definition of insomnia
: prolonged and usually abnormal inability to obtain adequate sleep—called also agrypnia
Learn More about insomnia
Thesaurus: All synonyms and antonyms for "insomnia" Medical Dictionary: Definition of "insomnia" Spanish Central: Translation of "insomnia" Nglish: Translation of "insomnia" for Spanish speakers Britannica English: Translation of "insomnia" for Arabic speakers Britannica.com: Encyclopedia article about "insomnia"
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