carcinoma

n. malignant tumor, cancer that begins in the epithelial tissue of the skin or tissues that cover internal organs

In medicine, carcinoma is any cancer that arises from epithelial cells. It is malignant by definition: carcinomas invade surrounding tissues and organs, and may spread to lymph nodes and distal sites (metastasis). Carcinoma in situ (CIS) is a pre-malignant condition, in which cytological signs of malignancy are present, but there is no histological evidence of invasion through the epithelial basement membrane.
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Carcinoma /car·ci·no·ma/ pl. carcinomas, carcino´mata a malignant new growth made up of epithelial cells tending to infiltrate surrounding tissues [more]Carcinoma - Community and Resources

Noun
1. any malignant tumor derived from epithelial tissue; one of the four major types of cancer
(hypernym) cancer, malignant neoplastic disease
(hyponym) liver cancer, cancer of the liver

n. carcinoma, malignant tumor