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TOEFL IELTS BNC: 21022 COCA: 12706

insomnia

noun
/ɪnˈsɒmniə/
/ɪnˈsɑːmniə/
[uncountable]
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  1. the condition of being unable to sleep失眠(症)
    • to suffer from insomnia失眠
    see also sleeplessness
    Word Originearly 17th cent.: from Latin, from insomnis ‘sleepless’, from in- (expressing negation) + somnus ‘sleep’.
TOEFL IELTS BNC: 21022 COCA: 12706
TOEFL IELTS BNC: 21022 COCA: 12706
TOEFL IELTS BNC: 21022 COCA: 12706
insomnia
Being awake and not sleeping: awake, conscious, waking...
Specific medical conditions: acidity, acne, ADD...

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