"Just a Theory"

When believers in creation and believers in evolution argue (or discuss), the conversation often turns to evolution's status as a "theory". It usually goes something like this:

Creationist: "Evolution is just a theory"

Evolutionist: "So is the Theory of Gravity"

But according to this article, there isn't really any agreement in what constitutes a "theory" and even, what separates science from "psuedo-science".

There's more to this discussion that sound-byte slaps. Epistemology and the Philosophy of Science are worth considering too.