n. [ L., fr. Gr. karki`nwma, fr. karki`nos crab, cancer. See -oma. ] (Med.) A form of malignant cancer arising from epithelial tissue. The term was earlier applied to all forms of cancer, or to certain non-malignant forms. It is contrasted with sarcoma, a malignant form of cancer arising from connective tissue. See Cancer. Dunglison. Stedman. [ 1913 Webster +PJC ]