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fatigue

fa·tigue [ fə tg ]


noun 
Definition:
 
1. mental or physical exhaustion: extreme tiredness or weariness resulting from physical or mental activity
weak with fatigue after the long march

2. inability to respond to situation: the temporary inability of somebody to respond to a situation as a result of overexposure or excessive activity ( often used in combination )
compassion fatigue

3. physiology inability to respond to stimulus: the temporary inability of an organ or body part such as a muscle or nerve cell to respond to a stimulus and function normally after continuous activity or stimulation

4. engineering weakening of material under stress: the weakening or breakdown of a material subjected to prolonged or repeated stress
metal fatigue

5. military nonmilitary work done by soldiers: manual or menial work done by soldiers, often as a punishment ( often used before a noun )



plural noun fa·tigues 
Definition:
 
military informal military uniforms: informal military uniforms worn every day and in battle, as distinct from formal uniforms



transitive and intransitive verb  (past and past participle fa·tigued, present participle fa·tigu·ing, 3rd person present singular fa·tigues)
Definition:
 
1. make or become tired: to tire somebody out as a result of physical or mental activity, or become tired out in this way

2. weaken under stress: to weaken or break something, or become weakened or broken, when subjected to prolonged or repeated stress

[Mid-17th century. Via French, "to tire" < Latin fatigare]

fat·i·ga·ble [ fáttigəb'l ] adjective
fa·tigued adjective
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