For the purposes of this chapter, the following definitions apply:
(1) "Truck tractor"
means any motor vehicle used or designed for use with a semi-trailer for carrying, conveying or moving over the highways any freight, property, article or thing, and having a combined weight of vehicle and maximum load to be carried thereon of more than 8,000 pounds.
(2) "Truck trailer"
means every vehicle without motive power (except a tractor trailer) which:
(3) "Motor truck"
means every motor vehicle designed or used for carrying, conveying or moving over the highways of this state any freight, property, article or thing, and having a combined weight of vehicle and maximum load to be carried thereon of more than 8,000 pounds.
(Ord. 145-90 § 1, 1990)