• Webster's Revised Unabridged Dictionary
    • Heterogamy (Biol) 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.
    • Heterogamy (Bot) The process of fertilization in plants by an indirect or circuitous method; -- opposed to orthogamy.
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Century Dictionary and Cyclopedia
    • n heterogamy The state or quality of being heterogamous; mediate or indirect fertilization of plants. See extract under Chermes.
    • n heterogamy In biology, heterogenesis, or alternation of generations, considered as an alternation between sexual and asexual reproduction or between parthenogenesis and bisexual reproduction.
    • n heterogamy Marriage or mating or pairing between unlike individuals, as contrasted with homogamy, or the mating of like with like.
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Webster's Revised Unabridged Dictionary
See Heterogamous


In literature:

Heterogamy: applied to those cases in which two sexual or a sexual and parthenogenetic generation alternate.
"Explanation of Terms Used in Entomology" by John. B. Smith
Alterations in the position of the sexual organs are spoken of under the head of Heterogamy.
"Vegetable Teratology" by Maxwell T. Masters