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English definition of “fatigue”

fatigue

noun (TIREDNESS/WEAKNESS)    /fəˈtiːɡ/
[U] formal extreme tiredness: She was suffering from fatigue.Tired and making tired [U] specialized engineering weakness in something, such as a metal part or structure, often caused by repeated bending: The crash was caused by metal fatigue in one of the propeller blades. → See also compassion fatigueMetals and metalworkingChemical elementsPhysical and chemical processes
(Definition of fatigue noun (TIREDNESS/WEAKNESS) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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