Breadcrumb Home > Thesaurus > X Synonyms of xenogenesis Find synonyms for: Noun 1. alternation of generations, heterogenesis, xenogenesis, organic phenomenon usage: the alternation of two or more different forms in the life cycle of a plant or animal WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of xenogenesis (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: criticaster Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language