News title from CNN(Cable News Network):
Polygamist leader pleads not guilty in Texas.
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One who practices polygamy, or maintains its lawfulness
The term polygamy (a Greek word meaning "the practice of multiple marriage") is used in related ways in social anthropology, sociobiology, sociology, as well as in popular speech. Polygamy can be defined as any "form of marriage in which a person [has] more than one spouse at the same time."
the custom of having more than one wife at the same time
1. to argue in support of somebody/something
2. to give something as an explanation or excuse for something
3. to state in a court of law that you are guilty or not guilty of a crime