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English definition of “supination”

supination

noun [U] uk   /suː.pɪˈneɪ.ʃən/ us    /ˌsuː.pəˈneɪ.ʃən/ specialized
the act of turning the palms of the hands or soles of the feet upward: The most common treatment for this injury involves flexion and supination of the forearm.RecliningNot holding the body upright
(Definition of supination from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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