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



    BrE BrE//ɪɡˈzɜːʃn//
    ; NAmE NAmE//ɪɡˈzɜːrʃn//
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  1. 1[uncountable] (also exertions [plural]) physical or mental effort; the act of making an effort She was hot and breathless from the exertion of cycling uphill. He needed to relax after the exertions of a busy day at work.
  2. 2[singular] the use of power to make something happen the exertion of force/strength/authority It requires no great exertion of the imagination to recognize the truth of this.
  3. Extra examples Try to avoid physical exertion. flushed and sweating with exertion after digging the garden His voice was breathless from exertion. She was sweating slightly from the exertion of housework.
See the Oxford Advanced American Dictionary entry: exertion