brachioradialis

noun

bra·​chio·​ra·​di·​alis ˌbrā-kē-ō-ˌrād-ē-ˈal-əs  -ˈāl-  -ˈäl- 

plural brachioradiales -ˈal-ˌēz, -ˈāl-, -ˈäl- 

: a flexor of the radial side of the forearm arising from the lateral supracondylar ridge of the humerus and inserted into the styloid process of the radius