- Composed of or resembling epidermal tissue.
- A cystic tumor made up of abnormal epidermal cells.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for epidermoid
The office of the epidermoid papillæ appears purely mechanical.
It secures to me a clean screen between my epidermoid and seal-skin integuments.Adrift in the Arctic Ice Pack
Elisha Kent Kane
The keratoid cancer is one which presents the horn-like transformation of its epidermoid cells.