noun. The fact or practice of being romantically or sexually involved with more than one person with the knowledge and consent of all parties.

noun. Any of various practices involving romantic or sexual relationships with multiple partners with the knowledge and consent of all involved.

"The term polyamory is sometimes abbreviated to poly, and is sometimes described as consensual, ethical, or responsible non-monogamy."

monogamy  polyandry  polygamy  polygyny  

polyamorous  

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