interlocking

interlocking

1. present participle and gerund of interlock

   All societies have three key interlocking elements: Religion, economics, and politics.

interlocking (plural interlockings)

1. (rail transport) An arrangement of signal apparatus that prevents conflicting movements through a set of intersecting tracks, such as junctions or crossings.
   • 1961 March, “Talking of trains: Collision at Waterloo”, in Trains Illustrated, page 138:

     In addition to the usual interlocking between conflicting signal and point levers achieved by electric locks, track circuits, when occupied, hold signals governing entry to the relevant line at danger; [...] The up main through inner home signal was held at danger by interlocking, because the track circuits of a conflicting route ahead of it were occupied by another train [...].

• interlocking tower