interlock

to fit into each other, as parts of machinery, so that all action is synchronized.

to interweave or interlace, one with another:

Railroads. (of switches, signals, etc.) to operate together in a prearranged order.

to lock one with another.

to fit (parts) together to ensure coordinated action.

Railroads. to arrange (switches, signals, etc.) to effect a predetermined sequence of movement.

the fact or condition of interlocking or of being interlocked.

the existence or an instance of an interlocking directorate.

a device for preventing a mechanism from being set in motion when another mechanism is in such a position that the two operating simultaneously might produce undesirable results.

Also called ignition interlock. a device or system that prevents an automotive engine from starting until the seat belt for any occupied front seat is fastened.

a stretch fabric made with a circular knitting machine having two alternating sets of long and short needles.

Movies. a device for synchronizing the action of a camera and sound recorder.