As used in this chapter, the following terms shall have the meanings indicated:
Any waste material or discarded material, old lumber or materials obtained from dismantled buildings or old iron or other metal or substance; glass, paper, machine parts, accessories, discarded machinery or discarded machines, in whole or in part, unregistered motor vehicles which are unfit for reconditioning or for sale for highway transportation, used parts of motor vehicles and any material commonly known and generally referred to as "junk" in the ordinary meaning of the word which is acquired or collected commercially.
Any person who buys or otherwise acquires junk for commercial purposes within the Borough or who collects and stores junk therein.
Any building in which junk is placed, collected, stored or kept.
Any lot of land on which junk is placed, collected, stored or kept.