the practice or condition of being married to more than one person at a time, esp marriage in which a husband has more than one wife: compare polyandry, polygyny
in pious times … before polygamy was made a sin — Dryden
in zoology, the practice of having more than one mate during a single breeding season
in botany, the condition of bearing both hermaphrodite and unisexual flowers on the same plant
polygamist noun
polygamous adj
polygamously adv
[early French polygamie via late Latin from Greek polygamia, from poly- + -gamia -gamy]