As used in this chapter, the following terms shall have the meanings indicated:
Any old, discarded or unused waste material of any type that has outlived its usefulness for its original purpose, and shall include iron, metals, glass, paper, rags, clothes, machines, automobiles, motor vehicles or parts or accessories thereof, such as auto bodies and the like, and all other materials commonly or generally known as "junk" in the ordinary meaning of the word, acquired or collected for commercial purposes, including specifically parts and portions of automobiles and discarded automobiles and automobile bodies.
Any person who deals in junk for commercial purposes or who buys or otherwise acquires, collects or stores junk for commercial purposes in the manner provided in this chapter.
Any building in which junk is stored, placed, sold or purchased for commercial purposes within the provisions of this chapter.
Any lands or parcels thereof on which junk is collected, placed or stored for commercial purposes and any remuneration whatever. A "junkyard" shall not include premises on which junk is kept, stored or disposed of by an owner or occupant of the premises by reason of its obsolescence in the ordinary sense of the word or which originates on the premises and becomes obsolescent or is kept or stored for the use of the owner or occupant other than in the business of buying, selling or storing the same.
Any land or building, or both, whereon a junkyard is maintained under the provisions of this chapter or any junk shop which is licensed or any premises for which a license is issued to a junk dealer under the provisions of this chapter.