Source : Webster's Revised Unabridged Dictionary (1913)

Interlock \In`ter*lock"\, v. i.
   To unite, embrace, communicate with, or flow into, one
   another; to be connected in one system; to lock into one
   another; to interlace firmly.

Interlock \In`ter*lock"\, v. t.
   To unite by locking or linking together; to secure in place
   by mutual fastening.

         My lady with her fingers interlocked.    --Tennyson.

Source : WordNet®

interlock
     n : the act of interlocking or meshing; "an interlocking of arms
         by the police held the crowd in check" [syn: {mesh}, {meshing},
          {interlocking}]
     v 1: coordinate in such a way that all parts work together
          effectively [syn: {mesh}]
     2: hold in a locking position; "He locked his hands around her
        neck" [syn: {lock}, {interlace}]
     3: become engaged or intermeshed with one another; "They were
        locked in embrace" [syn: {lock}]