difference between polygamy and bigamy
is that bigamy is the state of having two (legal or illegal) spouses simultaneously while polygamy is the having of multiple socially bonded sexual partners at the same time.Polygamy is a related term of bigamy. Bigamy is a related term of polygamy. As nouns the difference between bigamy and polygamy.s that bigamy is the state of having two (legal or illegal) spouses simultaneously while polygamy is the having of multiple socially bonded sexual partners at the same time.