• synonyms


noun Biology.
  1. reproduction characterized by the alternation of a sexual generation and a generation that reproduces asexually; alternation of generations.
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Origin of metagenesis

First recorded in 1885–90; meta- + genesis
Related formsmet·a·ge·net·ic [met-uh-juh-net-ik] /ˌmɛt ə dʒəˈnɛt ɪk/, met·a·gen·ic, adjectivemet·a·ge·net·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for metagenesis

Historical Examples of metagenesis

  • There are some species which, having no hydroid or strobila state, mature without alternation of generation (metagenesis).

    The Sea-beach at Ebb-tide

    Augusta Foote Arnold

  • A third way in which metagenesis might originate is through polymorphosis.

  • The term Nurse (German Amme), employed for the asexual generations in metagenesis, may advantageously be dropped altogether.

British Dictionary definitions for metagenesis


  1. another name for alternation of generations
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Derived Formsmetagenetic (ˌmɛtədʒɪˈnɛtɪk) or metagenic, adjectivemetagenetically, adverb
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

metagenesis in Medicine


  1. alternation of generations
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.