As used in this chapter:
(a) "Auction" means any sale or offering for sale wherein a price is submitted by the auctioneer and a bid is requested, either above or below the asking price.
(b) "Public auction house" means any lot, building or store where the sole business conducted is that of auctioning articles of merchandise and which auction house is in a zone permitting such business under the Zoning Code.
(1974 Code Sec. 7.51)