heteromorphosis

[hĕt′ə-rō-môrfə-sĭs, -môr-fōsĭs]
n.
  1. The development of one tissue from a tissue of another kind or type.
  2. The embryonic development of a tissue or an organ inappropriate to its site.
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 heteromorphosis

Historical Examples of heteromorphosis