monogamy

/məˈnɑɡəmi/
noun
  1. The practice or state of being married to or having a sexual relationship with only one partner at a time.
    • Monogamy is the most common form of marriage in Western societies.
    • They decided to practice monogamy after years of open relationships.
    • Some animals, like swans, are known for practicing lifelong monogamy.
  2. The condition of having only one mate during a breeding season or lifetime (used especially of animals).
    • Scientists studied the genetic evidence of monogamy in prairie voles.
    • Unlike many mammals, gibbons show strong monogamy.
    • Monogamy in birds is often linked to shared parenting duties.
Antonyms
What does "monogamy" mean? | whatsthatwordmean | whatsthatwordmean