multiple myeloma
/ˌmʌltɪpl ˌmʌɪəˈləʊmə/Medicine
noun
A malignant clonal proliferation of plasma cells, typically causing multiple lytic tumours in bones and usually associated with the presence of abnormal proteins in the blood and urine.
Origin
Late 19th century. From multiple + myeloma, after German multiples Myelom.