supinator

noun

su·pi·na·tor | \ ˈsü-pə-ˌnā-tər

Definition of supinator

: a muscle that produces the motion of supination

Examples of supinator in a Sentence

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There are three types of runners based on foot strike: overpronators (your feet roll inward too much), neutral pronators (feet roll inward slightly) and supinators (feet don’t roll inward enough, so most of the impact is on the outside of the foot). — Danika Worthington, The Denver Post, "How to start running if you’re a beginner," 25 Mar. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'supinator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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The first known use of supinator was in 1615

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supinator

noun

su·pi·na·tor | \ ˈsü-pə-ˌnāt-ər

Medical Definition of supinator

: a muscle that produces the motion of supination specifically : a deeply situated muscle of the forearm that arises in two layers from the lateral epicondyle of the humerus and adjacent parts of the ligaments and bones of the elbow and that passes over the head of the radius to insert into its neck and the lateral surface of its shaft