Home › Words › I › interlockerinterlockerinterlocker means A device that interlocks.EtymologyFrom interlock + -er.nounA device that interlocks.e.g.“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:A person who holds more than one role in a power structure.e.g.“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, Bernard Lane, Tourism Collaboration and Partnerships: Politics, Practice and Sustainability:Definitions & examples from Wiktionary (CC BY-SA 3.0).