brachialis

noun
bra·​chi·​alis | \ ˌbrā-kē-ˈal-əs How to pronounce brachialis (audio) , -ˈāl- How to pronounce brachialis (audio) , -ˈäl- How to pronounce brachialis (audio) \

Medical Definition of brachialis

: a flexor that lies in front of the lower part of the humerus whence it arises and is inserted into the ulna