Osgood-Schlatter's disease

noun
Os·​good-Schlat·​ter's disease | \ ˈäz-ˌgu̇d-ˈshlät-ərz- How to pronounce Osgood-Schlatter's disease (audio) \

Medical Definition of Osgood-Schlatter's disease

: an osteochondritis of the tuberosity of the tibia that occurs especially among adolescent males