automobile

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A self-propelled passenger vehicle that usually has four wheels and an internal-combustion engine, used for land transport. Also called motorcar.
2. adj. Of or relating to automobiles; automotive.

Century Dictionary and Cyclopedia

1. Self-moving.
2. n. Any device or apparatus which is movable by a force placed within itself and is self-acting as to direction and control; specifically— A torpedo, carrying within itself a store of accumulated energy, which can be launched from a vessel or fort, and which, when properly directed and adjusted, will move through the water until it reaches the object at which it is aimed.
3. n. A vehicle, carrying within itself the source of the mechanical power which propels it, designed to move on common roads or high ways: a motor-car. ; ; ; ; . The automobile or motor-car is not strictly an automobile, since a human intelligence always steers it and controls the power. The motor-car differs from the locomotive in that it does not travel on rails, and from the traction-engine or tractor in that it carries the load instead of drawing it after itself in other wheeled vehicles. The motor-bicycle and motor-tricycle differ from the motor-car in that the latter has nearly always four wheels. The types of vehicle included under the name automobile fall under one of four groups: The racing-car (rarely called an ‘automobile’), designed for great speed on prepared special tracks or speedways, carrying one or at most two persons, and made as light as is consistent with high power
4. To ride in an automobile vehicle.

Wiktionary

1. n. US, Canada A type of vehicle designed to move on the ground under its own stored power and intended to carry a driver, a small number of additional passengers, and a very limited amount of other load. A car or motorcar.
2. v. dated To travel by automobile.

GNU Webster's 1913

1. n. a self-propelled vehicle used for transporting passengers, suitable for use on a street or roadway. Many diferent models of automobiles have beenbuilt and sold commercially, possessing varied features such as a retractable roof (in a convertible), different braking systems, different propulsion systems, and varied styling. Most models have four wheels but some have been built with three wheels. Automobiles are usually propelled by internal combustion engines (using volatile inflammable liquids, as gasoline or petrol, alcohol, naphtha, etc.), and sometimes by steam engines, or electric motors. The power of the driving motor varies from under 50 H. P. for earlier models to over 200 H. P. larger models or high-performance sports or racing cars. An automobile is commonly called a car or an auto, and generally in British usage, motor cars.
2. v. to travel in an automobile.

WordNet 3.0

1. n. a motor vehicle with four wheels; usually propelled by an internal combustion engine
2. v. travel in an automobile