骨こつ軟なん骨こつ腫しゅMeanings1nounosteochondromaMedical term for a benign bone tumor consisting of bone and cartilage, often found near the ends of long bones.骨こつ軟なん骨こつ腫しゅは良りょう性せいの骨こつ腫しゅ瘍ようの一ひとつです。Osteochondroma is one type of benign bone tumor.