Junkyards, an activity prohibited hereunder, shall be defined as follows: an area of land with or without buildings, used for the storage outside a completely enclosed building, of used and discarded materials, including but not limited to waste paper, rags, metal, building materials, house furnishings, machinery vehicles, or parts thereof, with or without the dismantling, or parts thereof, with or without the dismantling, processing, salvage, sale, or other use or disposition of the same. The deposit or storage on a lot of one or more unlicensed or currently uninspected, wrecked, or disabled vehicles, or the major part thereof, shall be deemed to constitute a junkyard.