/ Thesaurus / A Synonyms of alternation of generations Find synonyms for: Noun1. alternation of generations, heterogenesis, xenogenesis, organic phenomenonusage: the alternation of two or more different forms in the life cycle of a plant or animalWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language