One who, or that which, trails. 2. A wheeled vehicle without a motor, designed to be drawn by a powered vehicle; especially. Such a vehicle equipped as a mobile dwelling unit, used as such when parked, also called mobile home. 3. A trailer (2) designed to carry a heavy object, as a boat trailer. 4. (Movies) A short blank segment of movie film attached to the end; used for convenient insertion of the film in a projector. 5.
A part of an object which extends some distance beyond the main body of the object; as, the trailer of a plant. Trailer park. An area equipped to accommodate trailers (2), often with outlets supplying electrical power and water.
Synonym: trailer camp, trailer court.