The Collaborative International Dictionary of English v.0.48:

Implicate \Im"pli*cate\, v. t. [imp. & p. p. Implicated; p.
   pr. & vb. n. Implicating.] [L. implicatus, p. p. of
   implicare to involve; pref. im- in + plicare to fold. See
   Employ, Ply, and cf. Imply, Implicit.]
   1. To infold; to fold together; to interweave.
      [1913 Webster]

            The meeting boughs and implicated leaves. --Shelley.
      [1913 Webster]

   2. To bring into connection with; to involve; to connect; --
      applied to persons, in an unfavorable sense; as, the
      evidence implicates many in this conspiracy; to be
      implicated in a crime, a discreditable transaction, a
      fault, etc.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

implicated \implicated\ adj.
   culpably involved; connected; -- of persons with respect to
   responsibility for events.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

implicated
    adj 1: culpably involved; "all those concerned in the bribery
           case have been identified"; "named three officials
           implicated in the plot"; "an innocent person implicated
           by circumstances in a crime" [syn: implicated,
           concerned]

Moby Thesaurus II by Grady Ward, 1.0:

120 Moby Thesaurus words for "implicated":
   Byzantine, a party to, accessory, accused, affected, affiliate,
   affiliated, allied, arraignable, arraigned, associate, associated,
   assumed, at fault, balled up, blamed, bound, bracketed, censurable,
   charged, cited, collateral, complex, complicated, concerned,
   confounded, confused, conjugate, connected, convoluted, correlated,
   coupled, crabbed, criminal, culpable, daedal, denounced, devious,
   elaborate, embrangled, engaged, entangled, faulty, fouled up,
   guilty, hinted, impeachable, impeached, implied, impugned,
   in complicity, included, incriminated, inculpated, indicated,
   indictable, indicted, inferred, interested, interlinked,
   interlocked, interrelated, intimated, intricate, involuted,
   involved, joined, knotted, labyrinthian, labyrinthine, linked,
   loused up, many-faceted, matted, mazy, meandering, meant,
   messed up, mixed up, mucked up, multifarious, of that ilk,
   of that kind, parallel, partaking, participant, participating,
   participative, participatory, peccant, perplexed, presumed,
   presupposed, ramified, related, reprehensible, reproachable,
   reproached, reprovable, roundabout, screwed up, sharing, snarled,
   spliced, subtle, suggested, supposed, tangled, tangly, tasked,
   taxed, tied, to blame, twinned, twisted, under attack, under fire,
   wed, wedded, yoked