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

  • n. Alternation of sexual and parthenogenic generations, as in some aphids.
  • n. The state or condition in which conjugating gametes are dissimilar in structure and size as well as in function.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The state of conjugating gametes that are different in size, structure and function
  • n. Marriage or similar union between people of different sexes, or social strata, such as races,.

from the GNU version of the Collaborative International Dictionary of English

  • n. The process of fertilization in plants by an indirect or circuitous method; -- opposed to orthogamy.
  • n. That form of alternate generation in which two kinds of sexual generation, or a sexual and a parthenogenetic generation, alternate; -- in distinction from metagenesis, where sexual and asexual generations alternate.

from The Century Dictionary and Cyclopedia

  • n. The state or quality of being heterogamous; mediate or indirect fertilization of plants. See extract under Chermes.
  • n. In biology, heterogenesis, or alternation of generations, considered as an alternation between sexual and asexual reproduction or between parthenogenesis and bisexual reproduction.
  • n. Marriage or mating or pairing between unlike individuals, as contrasted with homogamy, or the mating of like with like.


from Wiktionary, Creative Commons Attribution/Share-Alike License

hetero- + -gamy



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