n. & v.
n. 1 extreme tiredness after exertion. 2 weakness in materials, esp. metal, caused by repeated variations of stress. 3 a reduction in the efficiency of a muscle, organ, etc., after prolonged activity. 4 an activity that causes fatigue. 5 a a non-military duty in the army, often as a punishment. b (in full fatigue-party) a group of soldiers ordered to do fatigues.
v.tr. (fatigues, fatigued, fatiguing) cause fatigue in; tire, exhaust. fatiguable adj. (also fatigable). fatiguability n. (also fatigability). fatigueless adj.
[ F fatigue, fatiguer f. L fatigare tire out ]