Having many styles; belonging to the order Polygynia; polygynian.(adjective)
Having more than one female as wife or mate; practicing polygyny.(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "polygynous" in a sentence
"Aquinas goes on to describe how monogamy benefits women by reducing the female competition inherent in polygynous households, thereby insuring the concentration of emotional and material resources on a single female mate."
"They are polygynous, meaning each male has up to ten mates in his territory."
"Gorillas are polygynous in order to capitalize on the approach-avoidance conflict of needing a giant protector who looks scarier than hell but then wondering what to do with him when there is no danger."