osteochondroma

noun
os·​teo·​chon·​dro·​ma | \ -ˌkän-ˈdrō-mə How to pronounce osteochondroma (audio) \
plural osteochondromas also osteochondromata\ -​mət-​ə How to pronounce osteochondromata (audio) \

Medical Definition of osteochondroma

: a benign tumor containing both bone and cartilage and usually occurring near the end of a long bone

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