extensor carpi radialis brevis

noun
extensor car·​pi ra·​di·​al·​is brev·​is | \ -ˈkär-ˌpī-ˌrā-dē-ˈā-ləs-ˈbrev-əs, -ˈkär-ˌpē- How to pronounce extensor carpi radialis brevis (audio) \

Medical Definition of extensor carpi radialis brevis

: a short muscle on the radial side of the back of the forearm that extends and may abduct the hand