骨こつ肉にく腫しゅこつにくしゅMeanings1nounosteosarcomamedicineMedical term for a malignant bone tumor. Used in clinical contexts.骨こつ肉にく腫しゅは若じゃく年ねん層そうに多おおく見みられる悪あく性せい腫しゅ瘍ようです。Osteosarcoma is a malignant tumor commonly seen in young people.