The Collaborative International Dictionary of English v.0.48:

merged \merged\ adj.
   formed or united into a whole; -- of formerly separate
   objects, groups, etc.

   Syn: incorporate, incorporated, integrated, unified.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

merge \merge\ (m[~e]rj), v. t. [imp. & p. p. Merged
   (m[~e]rjd); p. pr. & vb. n. Merging (m[~e]r"j[i^]ng).] [L.
   mergere, mersum. Cf. Emerge, Immerse, Marrow.]
   To cause to be swallowed up; to immerse; to sink; to absorb.
   [1913 Webster]

         To merge all natural . . . sentiment in inordinate
         vanity.                                  --Burke.
   [1913 Webster]

         Whig and Tory were merged and swallowed up in the
         transcendent duties of patriots.         --De Quincey.
   [1913 Webster]

WordNet (r) 3.0 (2006):

merged
    adj 1: formed or united into a whole [syn: incorporate,
           incorporated, integrated, merged, unified]

Moby Thesaurus II by Grady Ward, 1.0:

50 Moby Thesaurus words for "merged":
   allied, amalgamated, assembled, assimilated, associated,
   banded together, blended, bound, bracketed, collected, combinative,
   combinatory, combined, conjoined, conjoint, conjugate, conjunctive,
   connected, connective, consolidated, copulate, coupled, eclectic,
   fused, gathered, hand-in-glove, hand-in-hand, incorporated,
   integrated, intimate, joined, joint, knotted, leagued, linked,
   matched, mated, mixed, one, paired, spliced, syncretistic,
   syncretized, synthesized, tied, undivided, united, unseparated,
   wedded, yoked