mindmap root((肿瘤)) tumor is applicable to any such growth on or in the body of a person, animal, or plant and to various other enlargements: removed a benign ~ from his skull. neoplasm is likely to replace tumor, especially in technical use, when reference is to a more or less unrestrained growth of cells without evident function or to a mass formed by such growth: identified the growth as a ~. malignancy applies to a neoplasm that because of unrestrained proliferation and tendency to invade tissues constitutes a menace to life: X rays revealed a ~ in the lung. cancer is the usual popular and technical term for a malignant neoplasm: kept her worries about the ~ to herself.