noun a substance in which medicine is taken.
2. vehicle ·add. ·noun a liquid used to spread sensitive salts upon glass and paper for use in photography.
3. vehicle ·noun that which is used as the instrument of conveyance or communication; as, matter is the vehicle of energy.
4. vehicle ·noun any liquid with which a pigment is applied, including whatever gum, wax, or glutinous or adhesive substance is combined with it.
5. vehicle ·noun 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.