malignant tumor

n.

1.

(Med.) Same as malignancy{4}.

Thesaurus

Noun

1.

malignant tumor - a tumor that is malignant and tends to spread to other parts of the body malignant neoplasm, metastatic tumor neoplasm, tumor, tumour - an abnormal new mass of tissue that serves no purpose carcinosarcoma - a malignant neoplasm composed of carcinoma and sarcoma extensively intermixed malignance, malignancy - (medicine) a malignant state; progressive and resistant to treatment and tending to cause death cancer, malignant neoplastic disease - any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream angiosarcoma - a rare malignant neoplasm arising from vascular tissue; usually occurs in the breast and skin and is believed to originate from the endothelial cells of blood vessels myeloma - a tumor of the bone marrow (usually malignant) composed of cells normally found in bone marrow neuroblastoma - malignant tumor containing embryonic nerve cells; usually metastasizes quickly neuroepithelioma - malignant tumor of the neuroepithelium retinoblastoma - malignant ocular tumor of retinal cells; usually occurs before the third year of life; composed of primitive small round retinal cells