vehicle

n. 1 conveyance used on land or in space. 2 thing or person as a medium for expression or action. 3 liquid etc. As a medium for suspending pigments, drugs, etc.  vehicular adj. [latin veho carry]

n. That in or on which any person or thing is, or may be, carried, as a coach, carriage, wagon, cart, car, sleigh, bicycle, etc.; a means of conveyance; specifically, a means of conveyance upon land.