For the purposes of this article, the following words and phrases shall have the meanings respectively ascribed to them by this section:
(a) "Auto trailer" means any building or structure used for living or sleeping purposes and equipped with wheels or other means to facilitate movement from place to place, and automobiles, when used for living or sleeping purposes.
(b) "Auto trailer camp" means any lot or parcel of land used or intended to be used for the accommodation of two or more auto trailers.
(c) "Camp sewer" means a sewer constructed in any auto trailer camp for the service of auto trailers and connected to the City sewer or in case there is no City sewer in any street on which the auto trailer camp abuts, to a septic tank or cesspool.
(d) "Trailer unit" means a plot of land in an auto trailer camp used or intended to be used for the accommodation of not more than one auto trailer and not more than one automobile which is not an auto trailer.
(1969 Code §25-1)