http://www.google.com/search?rlz=1C1AVSX_enUS400US400&sourceid=chrome&ie=UTF-8&q=insomnia
http://www.google.com/search?rlz=1C1AVSX_enUS400US400&sourceid=chrome&ie=UTF-8&q=insomnia
http://en.wikipedia.org/wiki/Insomnia.
http://www.emedicinehealth.com/insomnia/article_em.htm
http://www.webmd.com/sleep-disorders/guide/insomnia-symptoms-and-causes
http://www.imdb.com/title/tt0278504/
etc
(N).
http://www.google.com/search?rlz=1C1AVSX_enUS400US400&sourceid=chrome&ie=UTF-8&q=insomnia
http://en.wikipedia.org/wiki/Insomnia.
http://www.emedicinehealth.com/insomnia/article_em.htm
http://www.webmd.com/sleep-disorders/guide/insomnia-symptoms-and-causes
http://www.imdb.com/title/tt0278504/
etc
Dictionary.com said:in·som·ni·a   
[in-som-nee-uh] Show IPA
–noun
inability to obtain sufficient sleep, esp. when chronic; difficulty in falling or staying asleep; sleeplessness.
Origin:
1685–95; < L, equiv. to insomn ( is ) sleepless ( in- in-3 + somn ( us ) sleep + -is adj. suffix) + -ia -ia
—Related forms
in·som·ni·ous, adjective
Wiktionary.org said:insomnia
Contents [hide]
1 English
1.1 Etymology
1.2 Pronunciation
1.3 Noun
1.3.1 Derived terms
1.3.2 Translations
[edit]English
[edit]Etymology
From Latin in- + somnus + -ia
[edit]Pronunciation
Wikipedia has an article on:
Insomnia
Audio (US)
(file)
[edit]Noun
insomnia (countable and uncountable; plural insomnias)
a sleeping disorder that is known for its symptoms of unrest and the inability to sleep
[edit]Derived terms
insomniac
merriam-webster.com said:Definition of INSOMNIA
: prolonged and usually abnormal inability to obtain adequate sleep
— in·som·ni·ac adjective or noun
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
Related to INSOMNIA
Synonyms: sleeplessness, wakefulness
(N).










