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insomnia

play
noun in·som·nia \in-ˈsäm-nē-ə\

Simple Definition of insomnia

  • : the condition of not being able to sleep

Source: Merriam-Webster's Learner's Dictionary

Full Definition of insomnia

  1. :  prolonged and usually abnormal inability to get enough sleep

insomniac

play \-nē-ˌak\ adjective or noun

Examples of insomnia in a sentence

  1. <has suffered from insomnia virtually his entire life>



Origin and Etymology of insomnia

Latin, from insomnis sleepless, from in- + somnus sleep — more at somnolent


First Known Use: circa 1623


INSOMNIA Defined for Kids

insomnia

play
noun in·som·nia \in-ˈsäm-nē-ə\

Definition of insomnia for Students

  1. :  difficulty in sleeping




Medical Dictionary

insomnia

play
noun in·som·nia \in-ˈsäm-nē-ə\

Medical Definition of insomnia

  1. :  prolonged and usually abnormal inability to obtain adequate sleep—called also agrypnia





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