- Insomnia is defined as an ongoing inability to sleep or stay asleep.
When you have trouble falling asleep even though you are tired, this is an example of insomnia.
A man suffering from insomnia.
insomnia definition by Webster's New World
Origin: Classical Latin ; from insomnis, sleepless ; from in-, in- plush somnus, sleep: see somnolent
- insomniac noun, adjective
insomnia definition by American Heritage Dictionary
Origin: Latin īnsomnia, from īnsomnis, sleepless : in-, not; see in-1 + somnus, sleep; see swep- in Indo-European roots.
insomnia - Computer Definition
The inability to sleep. If you suffer from it, the solution is to look up all the terms under "standards" in this encyclopedia. Dozing should occur shortly. If that does not work... well, at least you will become the computer guru on your block!
insomnia - Cultural Definition
A persistent and prolonged inability to sleep.
insomnia - Medical Definition
insomnia - Science Definition