the supposed generation of offspring completely and permanently different from the parent.
Also xe·nog·e·ny [zuh-noj-uh-nee] /zəˈnɒdʒ ə ni/.
Origin of xenogenesis
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
The supposed production of offspring that are markedly different from either parent.
alternation of generations
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.