double-ended

double-ended (not comparable)

1. Having two ends.

   This double-ended arrow appears to point in two directions.

   We created a computer version of the card game using a double-ended queue.

   • 1960 February, A. S. Gillitt, “The operation and maintenance of Belgian main line diesels”, in Trains Illustrated, page 87:

     Now it consists of a large double-ended straight shed, divided across the middle by workshops and offices; one end is concerned solely with steam locomotives and the other with diesel locomotives and railcars.

2. (rail transport, of a train) Having a locomotive at each end.
3. (rail transport, of a multiple unit, or diesel or electric locomotive) Having a driving cab at each end.
   • 1961 May, B. A. Haresnape, “Design on the railway: Part Three”, in Trains Illustrated, page 303:

     British locomotives, like most European ones, are double-ended, general purpose machines, intended to be suitable for a variety of duties, and on occasion to work in multiple with each other.

4. (rail transport, of a train or multiple unit) Having a driver at each end.

• (rail transport: having a driver at each end): step back

double-ended

1. simple past and past participle of double-end