Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Chronic inability to fall asleep or remain asleep for an adequate length of time.

from The Century Dictionary.

  • noun Sleeplessness; inability to sleep, especially when chronic.

from the GNU version of the Collaborative International Dictionary of English.

  • noun Lack of sleep; inability to sleep, especially when chronic; wakefulness; sleeplessness.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A sleeping disorder that is known for its symptoms of unrest and the inability to sleep.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an inability to sleep; chronic sleeplessness

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin īnsomnia, from īnsomnis, sleepless : in-, not; see in– + somnus, sleep; see swep- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin in- + somnus + -ia

Examples

Comments

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  • I should move to some Pacific island. I share their time zone already. :-(

    June 23, 2008

  • You'll have to learn to talk through the side of your mouth so the flies don't get in.

    June 23, 2008

  • Hang on. In the comment to which I responded you were applying for honorary citizenship of Australia. Have you abandoned us so soon? It was all the poisonous snakes, wasn't it?

    June 23, 2008

  • The snakes, and the fact that I will supposedly be able to sleep in a couple of hours, and I'm not sure you will. :-)

    June 23, 2008

  • Anyway, I'll practice side-talking.

    June 23, 2008

  • Oh, it's tea time (9 pm).

    June 24, 2008

  • How about Galapagos?

    June 24, 2008

  • I'll think about that and let you know in five hours.

    June 24, 2008

  • Try counting giant turtles.

    June 24, 2008

  • I might go to the grocery later. (12.15 am)

    June 24, 2008