monogamous

adjective5

1. •
   Involving marriage to one person at a time.

   • Suppose, for example, that if polygamy were legal, 10 percent of adult men would take an average of three wives apiece and that all remaining marriages would be monogamous. — 2006
2. •
   Characterized by mutual sexual and romantic exclusivity.
3. •
   Exclusively engaging in mutually exclusive sexual/romantic partnership.
4. •
   Having only one sexual partner at a time.
5. •
   Monogamic; having a simple flower with united anthers.