As used in this chapter, the following terms shall have the meanings indicated:
A trailer coach without toilet facilities and laundry facilities or either of them.
A vehicle without means of self-propulsion but licensable as a conveyance on public streets or highways and which is constructed to permit occupancy as a dwelling or sleeping bed place for one or more persons.
Any plot of ground upon which two or more occupied mobile homes are located.
That part of a mobile home park designed to be occupied by one mobile home.