D defs.my
Entry 3 senses Webster, 1913

Polygamy

/pəl-ĭg'-əm-ēˌ/ · Po·lyg·a·my · IPA /pəˈlɪɡ.ə.mi/
01 n. The having of a plurality of wives or husbands at the same time; usually, the marriage of a man to more than one woman, or the practice of …
  1. 1.
    The having of a plurality of wives or husbands at the same time; usually, the marriage of a man to more than one woman, or the practice of having several wives, at the same time; -- opposed to monogamy; as, the nations of the East practiced polygamy. See the Note under Bigamy, and cf. Polyandry. See: Bigamy, Polyandry
  2. 2.
    The state or habit of having more than one mate.(Zool.)
  3. 3.
    The condition or state of a plant which bears both perfect and unisexual flowers.(Bot.)