noun, plural ep·i·the·li·o·mas, ep·i·the·li·o·ma·ta [ep-uh-thee-lee-oh-muh-tuh] /ˌɛp əˌθi liˈoʊ mə tə/. Pathology.
- a growth or tumor consisting chiefly of epithelial cells.
noun plural -mas or -mata (-mətə)
- pathol a malignant tumour of epithelial tissue
n. pl. ep•i•the•li•o•mas
- A benign or malignant tumor derived from epithelium.