heterogamy (uncountable)

  1. (biology) The state of conjugating gametes that are different in size, structure and function.
    Synonyms: anisogamy
    Antonyms: homogamy
  2. (sociology) Marriage or similar union between people of different sexes, or social strata, such as races.
    Synonyms: Thesaurus:intermarriage
    Antonyms: homogamy, Thesaurus:intermarriage

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