As used in this article, the following terms shall have the meaning indicated:
Any building owned, leased, or otherwise legally occupied or used by the Township of Delanco in which official municipal business is conducted.
Any gathering, whether corporal or by means of communication equipment, which is attended by, or open to, all members of a public body, held with the intent, on the part of the members of the body present, to discuss or act as a unit upon the specific public business of that body.