Source : Webster's Revised Unabridged Dictionary (1913)

Synchronization \Syn`chro*ni*za"tion\, n.
   The act of synchronizing; concurrence of events in respect to
   time.

Source : WordNet®

synchronization
     n 1: the relation that exists when things occur at the same time;
          "the drug produces an increased synchrony of the brain
          waves" [syn: {synchronism}, {synchrony}, {synchronicity},
           {synchroneity}, {synchronisation}, {synchronizing}]
          [ant: {asynchronism}, {asynchronism}, {asynchronism}]
     2: an adjustment that causes something to occur or recur in
        unison [syn: {synchronisation}, {synchronizing}, {synchronising}]
     3: coordinating by causing to indicate the same time; "the
        synchronization of their watches was an important
        preliminary" [syn: {synchronisation}, {synchronizing}]