D defs.my
Entry 2 senses Webster, 1913

Monogamy

/mən-äg'-əm-ē/ · Mo·nog·a·my · IPA /məˈnɑɡəmi/
01 n. Single marriage; marriage with but one person, husband or wife, at the same time; -- opposed to polygamy. Also, one marriage only during li…
  1. 1.
    Single marriage; marriage with but one person, husband or wife, at the same time; -- opposed to polygamy. Also, one marriage only during life; -- opposed to deuterogamy.
  2. 2.
    State of being paired with a single mate.(Zool.)