adelphic polyandry Directory References Discover Nostradamus and His Prophecies Timeline of the Space Race, 1957–69 10 Failed Doomsday Predictions 10 Great Sports Rivalries Which Religion Is the Oldest? Will Light-Speed Space Travel Ever Be Possible? New Seven Wonders of the World Contents adelphic polyandry marriage custom Ask the Chatbot a Question Ask the Chatbot a Question Also known as: fraternal polyandry Learn about this topic in these articles:polyandry In polyandry…brothers, the institution is called adelphic, or fraternal, polyandry. Polygyny, the marriage of a man and two or more women at the same time, includes an analogous sororal form. Read More