Definition of "epithelioma" [ep•i•the•li•o•ma]

• A benign or malignant tumor derived from epithelium. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "He was to have a basal cell epithelioma, a form of skin cancer, removed."
• "At first glance I took him to be from the South; but as he was pulling at the bell-knob, he having not yet seen me, I noticed on the rim of one ear a well-marked epithelioma, a form of cancer which occurs only after frostbite."
• "Squamous-celled epithelioma is the most frequent type of neoplasm."