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.

Related Terms:


Works Consulted

Collins English Dictionary: Complete and Unabridged. 6th ed. 2003. Glasgow, Scotland: Collins.

Macmillan. (N.d.) Macmillan Dictionary. (

Oxford University Press. (N.d.) Oxford Dictionaries. (

Princeton University. 2010. WordNet. (

Random House Webster’s College Dictionary. 1997. New York: Random House.

Wikipedia contributors. (N.d.) Wikipedia, The Free Encyclopedia. Wikimedia Foundation. (


How to Cite the Definition of Adelphogamy

ASA – American Sociological Association (5th edition)

Bell, Kenton, ed. 2013. “adelphogamy.” In Open Education Sociology Dictionary. Retrieved May 19, 2019 (

APA – American Psychological Association (6th edition)

adelphogamy. (2013). In K. Bell (Ed.), Open education sociology dictionary. Retrieved from

Chicago/Turabian: Author-Date – Chicago Manual of Style (16th edition)

Bell, Kenton, ed. 2013. “adelphogamy.” In Open Education Sociology Dictionary. Accessed May 19, 2019.

MLA – Modern Language Association (7th edition)

“adelphogamy.” Open Education Sociology Dictionary. Ed. Kenton Bell. 2013. Web. 19 May. 2019. <>.