Definition from Wiktionary, the free dictionary
mariticide (plural mariticides)
- The act of killing one's spouse, especially the murder of a husband by his wife.
- A woman who has killed her husband.
- The term mariticide is principally used to refer to the murder of a husband by his wife, rather than a general term for killing a spouse. The common term for the murder of a wife by her husband is uxoricide.
a man who kills his wife — see uxoricide