- The definition of a carcinoma is a malignant tumor that grows from epithelial tissue and tends to spread to other parts of the body.
A cancerous mole that grows on the skin is an example of a carcinoma.
This mole could be a carcinoma.
nounpl. car·ci·no·mas or car·ci·no·ma·ta
An invasive malignant tumor derived from epithelial tissue that tends to metastasize to other areas of the body.
Origin of carcinomaLatin, cancerous ulcer, from Greek karkinōma, from karkinos, cancer; see kar- in Indo-European roots.
(plural carcinomas or carcinomata)