supinator

noun

su·​pi·​na·​tor ˈsü-pə-ˌnā-tər 

: a muscle that produces the motion of supination

Examples of supinator in a Sentence

Recent Examples on the Web

For example, people who have outer knee pain or frequent ankle sprains tend to be supinators, Dr. Cunha says, since their feet roll outward. —April Benshosan, Health, 5 May 2023

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, 25 Mar. 2017

Word History

Etymology

New Latin, from Latin supinare

First Known Use

1615, in the meaning defined above

Medical Definition

supinator

noun

su·​pi·​na·​tor ˈsü-pə-ˌnāt-ər 

: 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