Difference between polygyny and polygamy . Is it a polygamous or polygynous family? Learn how to use these terms with definition and examples. Polygamy refers to the practice of having multiple spouses simultaneously , which can take forms such as polygyny (one man with multiple wives) or polyandry (one woman with multiple husbands). Polygamy is a type of relationship where a person marries more than one partner. Learn about the history, types, and impact of polygamy , as well as the potential pitfalls and challenges of this arrangement. Polygamy , the practice of having more than one spouse simultaneously, is a complex and multifaceted institution found in various cultures and societies throughout history.