\Po*lyg"a*mous\, a. [Gr. ? living ? polygamy; poly`s
many + ? marriage. Cf. {Bigamy}.]
1. Of or pertaining to polygamy; characterized by, or
   involving, polygamy; having a plurality of wives; as,
   polygamous marriages; -- opposed to {monogamous}.
2. (Zo["o]l.) Pairing with more than one female.
         Most deer, cattle, and sheep are polygamous.
                                               --Darwin.
3. (Bot.) Belonging to the Polygamia; bearing both
   hermaphrodite and unisexual flowers on the same plant.