25 Moby Thesaurus words for "malignant growth": benign tumor, callosity, callus, cancer, carcinoma, corn, cyst, excrescence, fungosity, fungus, growth, intumescence, metastatic tumor, mole, morbid growth, neoplasm, nevus, nonmalignant tumor, outgrowth, proud flesh, sarcoma, tumor, verruca, wart, wen