Polygamy is defined as having more than one spouse at a time.(noun)
When a man is married to three women at the same time, this is an example of polygamy.
See polygamy in Webster's New World College Dictionary
Origin: Fr polygamie < Gr polygamia: see poly- & -gamy
See polygamy in American Heritage Dictionary 4
Origin: French polygamie
Origin: , from Late Latin polygamia
Origin: , from Greek polugamiā
Origin: : polu-, poly-
Origin: + -gamiā, -gamy.
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