NoNukes writes:
I think he is saying instead that tritium can form (a form of heavy) heavy water via combining with oxygen.
Yeah, I think you've hit upon the correct interpretation, in which case he's got his terminology confused. According to the
Wikipedia article on Tritiated Water, "It [tritium oxide] should not be confused with heavy water, which is deuterium oxide."
Zaius, what was the point you were trying to make?
--Percy