A pandemic is a form of epidemic (according to Wikipedia's definition, which you have referred to).
An epidemic is an outbreak of a disease (according to Wikipedia's definition, which you have referred to).
A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not due to any immediate external injury... A disease may be caused by external factors such as pathogens or by internal dysfunctions. (according to Wikipedia's definition, which is included by link by its definition of epidemic).
There is no requirement on the definition of epidemic that you have referred to that requires it to be infectious.
Please pick a definition and stick to it. You want a pandemic to be a global outbreak of a disease to which the overwhelming majority of the population is susceptible and which is spread via a pathogen without physical contact. If there's an authority that uses that definition, find them and cite them. Otherwise please stick the definitions you've already cited and move on.
The wikipedia definition of epidemic that I cited uses the phrase "rapid spread of disease". I think most people would agree that for a disease to spread it must be communicable in some way.
An epidemic is an outbreak of a disease (according to Wikipedia's definition, which you have referred to).
A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not due to any immediate external injury... A disease may be caused by external factors such as pathogens or by internal dysfunctions. (according to Wikipedia's definition, which is included by link by its definition of epidemic).
There is no requirement on the definition of epidemic that you have referred to that requires it to be infectious.
Please pick a definition and stick to it. You want a pandemic to be a global outbreak of a disease to which the overwhelming majority of the population is susceptible and which is spread via a pathogen without physical contact. If there's an authority that uses that definition, find them and cite them. Otherwise please stick the definitions you've already cited and move on.