The following words, terms and phrases, when used in this chapter, shall have the meanings ascribed to them in this section, except where the context clearly indicates a different meaning:
Any vehicle used or intended to be used for the conveyance of a boat upon the public streets or highways.
Any vehicle used or intended to be used as, or attached to a vehicle used as, a conveyance upon public streets or highways and duly licensed as such, including any vehicle containing within such vehicle the means of propulsion thereof and also any vehicle propelled by means from without such vehicle, so designed, constructed, reconstructed, remodeled or added to by means of accessories or otherwise in such a manner or to such effect as to permit the occupancy thereof as a temporary dwelling or sleeping place for one or more persons, and having no foundation other than wheels, jacks or supports so arranged as to be integral with or conveyed by or with the trailer or camp vehicle.