x-over

Noun

crossover (countable and uncountable, plural crossovers)

1. A place where one thing crosses over another.
2. The means by which the crossing is made.
3. The result of the exchange of genetic material during meiosis.
4. A blend of multiple styles of music or multiple film genres, intended to appeal to a wider audience.
5. (derogatory, sometimes) An SUV-like automobile built on a passenger car platform, e.g. the Buick Enclave.

   Synonyms:

   CUV, XUV

6. A pair of switches and a short, diagonal length of track which together connect two parallel tracks and allow passage between them.
   • The passenger train was signalled from one of the west end bay platforms along the Down South Line; as it passed through a crossover to the Up South Line the freight train, which had been travelling slowly to the Up South Line, over-ran the signal protecting the crossover and came into sidelong...1961 February, “Talking of Trains: Collision at Newcastle”, in Trains Illustrated, page 76

See all 15 meanings of crossover