Trailer
From BiblePortal Wikipedia
Trailer [1]
(1):
(n.) A car coupled to, and drawn by, a motor car in front of it; - used esp. of such cars on street railroads. Called also trail car.
(2):
(n.) One who, or that which, trails.
(3):
(n.) A part of an object which extends some distance beyond the main body of the object; as, the trailer of a plant.