sternoclavicular

adjective
ster·​no·​cla·​vic·​u·​lar | \ ˌstər-nō-kla-ˈvik-yə-lər How to pronounce sternoclavicular (audio) \

Medical Definition of sternoclavicular

: of, relating to, or being articulation of the sternum and the clavicle the sternoclavicular joint sternoclavicular dislocation