1. (noun) A marriage in which brothers share one or more wives.

2. (noun) A marriage between a brother and sister.

Example: Brothers and sisters from royal families in ancient Egypt would marry to perpetuate the royal lineage.

Audio Pronunciation: (a·del·pho·ga·my)

Download Audio Pronunciation: adelphogamy.mp3

Usage Notes:

  • A type of polyandry.
  • Also called:
    • adelphic polyandry
    • fraternal polyandry
  • Adelphogamy used in a sentence: Morgan, a woman, married Kelly and Reese who were brothers to form an adelphogamic relationship.
  • A brother and sister who are married are in an (adjective) adelphogamic or (adjective) adelphogamous relationship.

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