despeciation

[ dē-spē′shē-āshən, -sē- ]

n.

The alteration or loss of species characteristics.
The removal of species-specific antigenic properties from a foreign protein.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.