The Collaborative International Dictionary of English v.0.48:

Laceration \Lac`er*a"tion\, n. [L. laceratio: cf. F.
   lac['e]ration.]
   1. The act of lacerating.
      [1913 Webster]

   2. A breach or wound made by lacerating. --Arbuthnot.
      [1913 Webster]

WordNet (r) 3.0 (2006):

laceration
    n 1: a torn ragged wound
    2: the act of lacerating

Moby Thesaurus II by Grady Ward, 1.0:

82 Moby Thesaurus words for "laceration":
   abrasion, abscission, amputation, blemish, break, burn, butchering,
   chafe, check, chip, chopping, clawing, cleavage, concussion, crack,
   crackle, craze, cruciation, crucifixion, cut, cutting, dichotomy,
   enucleation, excision, fission, flash burn, fracture, fray,
   frazzle, gall, gash, hell, hell upon earth, holocaust, horror,
   hurt, incision, injury, lancination, lesion, martyrdom,
   mortal wound, mutilation, nightmare, passion, persecution,
   puncture, purgatory, rack, rending, rent, resection, rip, ripping,
   run, rupture, scald, scission, scorch, scrape, scratch, scuff,
   second-degree burn, section, severance, slash, slashing, slicing,
   sore, splitting, stab, stab wound, surgery, tear, tearing,
   third-degree burn, torment, torture, trauma, wound,
   wounds immedicable, wrench