Definition of "epidermoid" [ep•i•der•moid]

• Composed of or resembling epidermal tissue: epidermoid carcinoma. (adjective)

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.

• "These ones are called epidermoid cysts, and they may occur alone."
• "There, the doctors diagnosed Lacks with stage I epidermoid carcinoma of the cervix, which would require her to have radiation treatments a few times a month."
• "If you guessed that it was also an epidermoid tumor, you get double credit."