interlocker

Noun

1. A device that interlocks.
   • Signals and interlockers. — The Nickel Plate has 24 interlocking plants on its lines, of which 20 are mechanically operated and 4 electrically operated. - 1933, Interstate Commerce Commission Reports:
2. A person who holds more than one role in a power structure.
   • In 1995 the attention of the interlockers shifted away from their unresolved differences about sustainability to the consideration of specific policy options of particular interest to each. - 2000, Bill Bramwell,...