myeloma URI: http://www.ebi.ac.uk/cellline#myeloma "A bone marrow cancer that affects plasma cells in which abnormal plasma cells multiply uncontrollably in the bone marrow and occasionally in other parts of the body." [url:http\://www.merck.com/mmhe/sec14/ch175/ch175c.html#sec14-ch175-ch175c-328] bone marrow cancer