noun
group marriage
Anthropological term for a marriage system in which multiple men and women are married to each other simultaneously. Used mainly in academic or historical contexts.
群婚は、一部の伝統的社会で見られた婚姻形態です。
Group marriage is a form of marriage that was seen in some traditional societies.
Compound of 群 (group) and 婚 (marriage). The exact historical derivation is uncertain; the term is a modern academic coinage for the anthropological concept of group marriage.