As used in this chapter:

    "Junk" means and includes scrap and old iron, steel, chain, brass, copper, magnesium, aluminum, tin, lead or other base metals, scrap lumber, old rope, old bags, rags, waste paper, paper clippings, scraps of woolens, clips, bagging, rubber and glass, and empty bottles of different kinds or sizes when the number of each kind or size is less than one gross, any wrecked or dilapidated motor vehicle, engine, or machinery received, stored or held for more than ninety (90) days, and all articles and things discarded or no longer used as a manufactured article composed of or consisting of any one or more of the materials or articles herein mentioned.

    "Junk dealer" means and includes every person, firm, partnership or corporation that shall engage in the business of buying, selling, bartering or exchanging, or shall collect, receive, store or hold in possession for sale, barter or exchange, any of the things in and by this section defined as junk.

    "Junk yard" means and includes the premises on which a junk dealer is engaged in the business of buying, selling, bartering, exchanging or collecting, receiving, storing or holding in possession for sale, barter or exchange, any of the things in and by this section defined as junk. (Prior code § 7-5-1)