As used in this subchapter:
(1) “Motorcycle” means a motor vehicle having a saddle for the use of the rider and designed to travel on not more than three (3) wheels in contact with the ground.
(2) “Motorcycle” does not include a tractor;
(3) “Nitrous oxide” means a gas or liquid form of nitrous oxide that is used to increase the speed or performance of a motor vehicle or motorcycle; and
(4) “Street or highway” means the entire width between property lines of every way or place of whatever nature when any part of the street or highway is open to the use of the public as a matter of right for purposes of vehicular traffic.