The Collaborative International Dictionary of English v.0.48:

Lacerate \Lac"er*ate\, Lacerated \Lac"er*a`ted\, p. a. [L.
   laceratus, p. p.]
   1. Rent; torn; mangled; as, a lacerated wound.
      [1913 Webster]

            By each other's fury lacerate         --Southey.
      [1913 Webster]

   2. (Bot. & Zool.) Jagged, or slashed irregularly, at the end,
      or along the edge.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

lacerated \lacerated\ adj.
   torn roughly; -- of skin.

   Syn: mangled, torn.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Lacerate \Lac"er*ate\, v. t. [imp. & p. p. Lacerated; p. pr. &
   vb. n. Lacerating.] [L. laceratus, p. p. of lacerare to
   lacerate, fr. lacer mangled, lacerated; cf. Gr. ? a rent,
   rending, ? to tear; perh. akin to E. slay.]
   To tear; to rend; to separate by tearing; to mangle; as, to
   lacerate the flesh. Hence: To afflict; to torture; as, to
   lacerate the heart.
   [1913 Webster] Lacerate

WordNet (r) 3.0 (2006):

lacerated
    adj 1: irregularly slashed and jagged as if torn; "lacerate
           leaves" [syn: lacerate, lacerated]
    2: having edges that are jagged from injury [syn: lacerate,
       lacerated, mangled, torn]

Moby Thesaurus II by Grady Ward, 1.0:

100 Moby Thesaurus words for "lacerated":
   afflicted, aggravated, agonized, battlemented, broken, burned,
   burst, busted, checked, chipped, chopped, clawed, cleft, cloven,
   convulsed, cracked, crazed, crenate, crenated, crenellated,
   crenulate, crucified, cut, damaged, dentate, dentated,
   deteriorated, distressed, embittered, embrasured, erose,
   exacerbated, gashed, harmed, harrowed, hurt, hurting, impaired,
   imperfect, in bits, in distress, in pain, in pieces, in shards,
   in shreds, incised, indented, jagged, jaggy, lacerate, lancinated,
   mangled, martyred, martyrized, mutilated, nicked, notched,
   on the rack, pained, quartered, racked, ragged, rent, ripped,
   riven, ruptured, savaged, saw-toothed, sawlike, scalded, scalloped,
   scorched, scored, serrate, serrated, serrulated, severed,
   shattered, shredded, slashed, slit, smashed, splintered, split,
   sprung, suffering, tattered, the worse for, toothed, tormented,
   torn, tortured, twisted, under the harrow, weakened, worse,
   worse off, worsened, wounded, wrung