Usually occurs near the end of a long bone

• Benign tumor containing both bone and cartilage

Wikipedia Word definitions in Wikipedia
Osteochondromas or osteocartilaginous exostoses are the most common benign tumors of the bones. The tumors take the form of cartilage-capped bony projections or outgrowth on the surface of bones ( exostoses ). It is characterized as a type of overgrowth ...

WordNet Word definitions in WordNet
n. benign tumor containing both bone and cartilage; usually occurs near the end of a long bone

Wiktionary Word definitions in Wiktionary
n. (context medicine English) A benign tumor consisting of bone or cartilage