ALTERNATION OF GENERATIONS

WordNet Dictionary

	Definition:	[n] the alternation of two or more different forms in the life cycle of a plant or animal

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	Synonyms:	heterogenesis, xenogenesis

	See Also:	digenesis, metagenesis, organic phenomenon

Biology Dictionary

	Definition:	The occurrence in one life history of two or more different forms differently produced, usually an alternation of a sexual with an asexual form.