interlocking

The act of locking together or in combination, as in a railway-switch and signal system. See interlocking system of signals, under interlock, and signaling.

Connected together in such a manner that the parts work together as a single unit, or in a coordianted manner.

That interlocks.

Present participle of interlock.

the act of interlocking or meshing

contact by fitting together

linked or locked closely together as by dovetailing