“Salvage yard” means any lot, or portion of a lot, which is used for the purpose of the outdoor storage, handling, dismantling, wrecking, keeping or sale of used, discarded, wrecked or abandoned airplanes, appliances, vehicles, boats, building and building materials, machinery, equipment, or parts thereof, including, but not limited to, scrap metals, wood, lumber, plastic, fiber or other tangible materials as defined in this title under “junk.” (Ord. 454 § 4, 1992)