from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The supposed production of offspring markedly different from either parent.
  • n. See alternation of generations.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A foreign origin or source.
  • n. The production of an offspring that is unlike either of its parents.

from the GNU version of the Collaborative International Dictionary of English

  • n. Same as heterogenesis.
  • n. The fancied production of an organism of one kind by an organism of another.

from The Century Dictionary and Cyclopedia

  • n. The generation of offspring which pass through an entirely different life-cycle from that of the parents, and never exhibit the characters of the latter: a mode of biogenesis supposed by Milne-Edwards to occur, but not proved to have any existence in fact.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the alternation of two or more different forms in the life cycle of a plant or animal


From xeno- + -genesis. (Wiktionary)


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  • "xen·o·gen·e·sis=
    1. The supposed production of offspring markedly different from either parent."

    July 26, 2009