carcinoma car·ci·no·ma (kär'sə-nō'mə)
n. pl. car·ci·no·mas or car·ci·no·ma·ta (-mə-tə)
Abbr. CA An invasive malignant tumor derived from epithelial tissue that tends to metastasize to other areas of the body.
Plural carcinomas or carcinomata (kär'sə-nō'mə-tə)
Any of various cancerous tumors that are derived from epithelial tissue of the skin, blood vessels, or other organs and that tend to metastasize to other parts of the body. See also basal cell carcinoma, squamous cell carcinoma.