Source : Webster's Revised Unabridged Dictionary (1913)

Subsequence \Sub"se*quence\, Subsequency \Sub"se*quen*cy\, n.
   The act or state of following; -- opposed to precedence.

Source : WordNet®

subsequence
     n 1: something that follows something else [syn: {sequel}]
     2: following in time [syn: {posteriority}, {subsequentness}]
        [ant: {priority}]