Definition of: vehicle

(vē′ə·kəl) noun
1. That in or on which anything is carried; especially, a contrivance fitted with wheels or runners for carrying something; a conveyance, as a car or sled.
2. Med. A medium, as a liquid, with which is mixed some other substance that it may be applied or administered more easily; an excipient.
3. The medium with which pigments are mixed in painting.
4. Anything by means of which something else, as power, thought, etc., is transmitted or communicated; a device used to transmit an effect. [<F véhicule <L vehiculum <vehere carry, ride]
—ve·hic·u·lar (vi·hik′yə·lər) adjective