Definition of fatigue noun from the Oxford Advanced Learner's Dictionary

     

    fatigue

     noun
    noun
    BrE BrE//fəˈtiːɡ//
     
    ; NAmE NAmE//fəˈtiːɡ//
     
    Tiredness
     
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  1. 1[uncountable] a feeling of being extremely tired, usually because of hard work or exercise synonym exhaustion, tiredness physical and mental fatigue Driver fatigue was to blame for the accident. I was dropping with fatigue and could not keep my eyes open. See related entries: Tiredness
  2. 2[uncountable] (usually after another noun) a feeling of not wanting to do a particular activity any longer because you have done too much of it battle fatigue compassion fatigue (= the inability to feel pity for other people’s suffering any more) brought on by too many charity appeals
  3. 3[uncountable] weakness in metal or wood caused by repeated bending or stretching The wing of the plane showed signs of metal fatigue.
  4. 4fatigues [plural] loose clothes worn by soldiers
  5. 5fatigues [plural] (especially North American English) duties, such as cleaning and cooking, that soldiers have to do, especially as a punishment We were all put on cookhouse fatigues for a week.
  6. Word Origin mid 17th cent. (in the sense ‘task that causes weariness’): from French fatigue (noun), fatiguer (verb), from Latin fatigare ‘tire out’, from ad fatim, affatim ‘to satiety or surfeit’.Extra examples Correcting your posture prevents muscle fatigue and injury. He was crying from cold and fatigue. She had to stop work when fatigue set in. The man was shivering with fatigue. The right vitamins help you combat fatigue. Tom began to feel fatigue and weakness once more. car accidents caused by driver fatigue conditions such as chronic fatigue, insomnia and depression simple lifestyle strategies to prevent fatigue soldiers in combat fatigues soldiers suffering from battle fatigue swimmers who are in a state of extreme fatigue
See the Oxford Advanced American Dictionary entry: fatigue