General Science

  • verb to connect together so that the movement or operation of one affects others


  • noun a series of switches and/or relays
  • verb to connect together parts of a mechanism, so that the movement or operation of individual parts affects each other

Cars & Driving

  • noun a device in a change-speed gearbox which prevents two gears being engaged at the same time


  • noun a security device that is part of the logon prompt and requires a password
  • verb to prevent a device from performing another task until the present one has been completed

Information & Library Science

  • noun a safety device that disables a process or piece of equipment if it might cause harm, e.g. a fusewire which prevents a circuit blowing
  • verb to fit things together so that they join firmly