A nevus consisting of nests of melanocytes at the junction of the epidermis and dermis that appear as a small, slightly raised, flat, nonhairy, dark-brown or black tumor.
- junction box,
- junction city,
- junction transistor,
- junctional epithelium,
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.