supinator

SYN: s. (muscle). See s. (muscle), biceps brachii (muscle).

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su·pi·na·tor 'sü-pə-.nāt-ər n a muscle that produces the motion of supination specif 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

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n.

a muscle of the forearm that extends from the elbow to the shaft of the radius. It supinates the forearm and hand.

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su·pi·na·tor (sooґpĭ-na-tər) 1. a muscle that serves to supinate. 2. musculus supinator.