As used in this chapter, the following terms shall have the meanings indicated:
A person who keeps a junkyard in the borough or who maintains within the borough as a business any yard, space or place, not completely enclosed within a building, for the purpose of buying, selling, exchanging, storing, processing or preparing for sale or use old, secondhand, used, discarded or scrapped metals, bottles, glassware, tinware, paper bags, rubber goods, plumbing, heating and electrical equipment, fittings, fixtures and appliances, whole motor vehicles which are unregistered or, if registered, no longer fit for reconditioning for use in highway transportation, or motor or other vehicles which are wholly or partly dismantled or used parts or scraps therefrom, or any other old, second-hand, used, discarded or scrapped material commonly called "junk."
A place of business in the borough where unregistered motor vehicles unfit for reconditioning for use in highway transportation, or used parts thereof or other obsolete vehicles, equipment, appliances or meted scrap having junk salvage value are purchased by a dealer in such commodities and deposited and stored by such dealer for display and sale of used parts or scrap metal on any open lot or area of vacant land.