backshunt
nounEtymology From back + shunt.
1
Rail transport, Railways, Transport UK A section of railway track which gives access to a siding (or another section of railway line) only by reversing direction; also a train movement which uses such track.
- Another peculiarity of this branch is that, like the Chard line, it has no direct connection with the main line, a backshunt into a siding being necessary before this can be reached.1939 December, John D. Hewitt, “Some Notable British Main Lines: II. Salisbury and Exeter, S.R.”, in Railway Magazine, page 412: