Argue Wars

No, see, that definition of frozen only applies if pizza were to be a liquid. If you consider the sauce/cheese to be a part of the equation, then it only applies when they have solidified (and not simply congealed into a slow moving liquid), which is the classically understood state of freezing - what we all imagine when someone says "frozen pizza." If you require the whole pizza to comply, then this definition of frozen can't apply because pizza is never wholly liquid. The dough will sublimate rather than melt unless you manage to apply a crapload of pressure. You can test this by burning a whole pizza (and I mean REALLY burning it), as you will see the cheese and sauce melt, but the crust never will.