As used in this chapter, the following terms shall have the meanings indicated:
Any dance to which admission can be had, either with or without the payment of a fee, but shall not include the operation of any restaurant, tavern or similar establishment in which dancing may be merely incidental to other operations; nor shall it include any private social gathering held by any fraternal, charitable, religious or educational organization, and limited to members thereof where such organization does not have, as a primary purpose, the sponsoring or holding of such social gatherings.
Any room, space or place in which a public dance is held.