Refers to the practice of having more than one spouse simultaneously. A formal, technical term; in everyday conversation, 一夫多妻 (polygyny) or 一妻多夫 (polyandry) are more specific.
Polygamy is legally prohibited in many countries.
Polygamy has traditionally been accepted in this culture.
Bigamy; the act of marrying someone while already legally married to another, often with a criminal connotation.
複 (multiple) + 婚 (marriage). A Sino-Japanese compound.