[bryondowd]

The first result of searching for the word `wife` in the linked page:

See, e.g., Black’s Law Dictionary (6th ed.1990) (defining rape as the ‘act of sexual intercourse committed by a man with a woman not his wife and without her consent, committed when the woman’s resistance is overcome by force or fear, or under other prohibitive conditions’).”

Not sure it proves what the GP was saying, though. The second result is similar, and seems to be referencing an actual law.