nounpl. -·mas or -·mata
a malignant tumor of the bone marrow, consisting generally of abnormal plasma cells
Origin of myelomamyel(o)- + -oma
nounpl. my·e·lo·mas, or my·e·lo·ma·ta
A malignant tumor formed by the cells of the bone marrow.
(plural myelomas or myelomata)
- (pathology) A malignant tumour arising from cells of the bone marrow, specifically plasma cells.