Source : Webster's Revised Unabridged Dictionary (1913)

Revision \Re*vi"sion\, n. [F. r['e]vision, L. revisio.]
   1. The act of revising; re["e]xamination for correction;
      review; as, the revision of a book or writing, or of a
      proof sheet; a revision of statutes.

   2. That which is made by revising.

   Syn: Re["e]xamination; revisal; revise; review.

Source : WordNet®

revision
     n 1: the act of revising or altering (involving reconsideration
          and modification); "it would require a drastic revision
          of his opinion" [syn: {alteration}]
     2: the act of rewriting something [syn: {revisal}, {revise}, {rescript}]
     3: something that has been written again; "the rewrite was much
        better" [syn: {rewrite}, {rescript}]

Source : Free On-Line Dictionary of Computing

revision
     
         A {release} of a piece of software which is not
        a {major release} or a {bugfix}, but only introduces small
        changes or new features.
     
        (1996-08-04)