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

     

    extremity

     noun
    noun
    BrE BrE//ɪkˈstreməti//
     
    ; NAmE NAmE//ɪkˈstreməti//
     
    (pl. extremities)
     
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  1. 1[countable] the furthest point, end or limit of something The lake is situated at the eastern extremity of the mountain range. We travelled the whole distance between the two extremities of the island.
  2. 2[countable, uncountable] the degree to which a situation, a feeling, an action, etc. is extreme, difficult or unusual the extremities/extremity of pain
  3. 3extremities [plural] (formal) the parts of your body that are furthest from the centre, especially your hands and feet Cold extremities and a hot head are the first signs of the fever.
  4. Word Origin late Middle English: from Old French extremite or Latin extremitas, from extremus ‘utmost’, superlative of exterus ‘outer’.
See the Oxford Advanced American Dictionary entry: extremity