OK! The distinction I’m familiar with is sightly different, but I’ll trust your understanding of Catholic doctrine (which is certainly a more valid way to draw a distinction than my own nebulous sense of things)
Well, I’m not a Catholic, and I don’t think it’s a hard and fast formal definition - I only brought it up because I couldn’t think of another case where the distinction would really be relevant, otherwise I think people use them pretty much interchangeably. I’m not saying I have the objectively correct definition, just trying to explain what I meant.