The practice of one man having more than one wife is called:

Question

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The practice of one man having more than one wife is called polygamy. Polyandry is the practice of one woman having more than one husband, monoandry does not refer to any form of polygamy but refers to the mating system where one male mates with only one female, open marriage refers to a marital arrangement where both partners agree that extramarital sexual relationships may occur, and polyamory refers to the practice of engaging in multiple romantic and sexual relationships with the consent of all parties involved.

The Practice of One Man Having More Than One Wife