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insomnia: Meaning and Definition of

in•som•ni•a

Pronunciation: (in-som'nē-u), [key]
— n.
  1. inability to obtain sufficient sleep, esp. when chronic; difficulty in falling or staying asleep; sleeplessness.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
insolvent insomniac
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