The Collaborative International Dictionary of English v.0.48:

Mutilation \Mu`ti*la"tion\, n. [L. mutilatio: cf. F.
   mutilation.]
   The act of mutilating, or the state of being mutilated;
   deprivation of a limb or of an essential part.
   [1913 Webster]

WordNet (r) 3.0 (2006):

mutilation
    n 1: an injury that causes disfigurement or that deprives you of
         a limb or other important body part

Moby Thesaurus II by Grady Ward, 1.0:

134 Moby Thesaurus words for "mutilation":
   abrasion, abscission, amputation, annihilation, bankruptcy,
   blemish, bowlegs, break, breakage, breakdown, burn, butchering,
   camelback, chafe, check, chip, chopping, cleavage, cleft palate,
   clubfoot, collapse, concussion, crack, crack-up, crackle, craze,
   crippling, crookback, cut, cutting, damage, defacement,
   deformation, deformity, destruction, detriment, dichotomy,
   dilapidation, disablement, disfigurement, disrepair, elimination,
   encroachment, enucleation, eradication, excision, exclusion,
   extinction, extirpation, fission, flash burn, flatfoot, fracture,
   fray, frazzle, freakishness, gall, gash, harelip, harm, hobbling,
   humpback, hunchback, hurt, hurting, impairment, incapacitation,
   incision, infringement, injury, inroad, knock-knee, kyphosis,
   laceration, lesion, lordosis, loss, maiming, malconformation,
   malformation, mayhem, mischief, misproportion, misshape,
   monstrosity, mortal wound, puncture, rending, rent, rescission,
   resection, rip, ripping, ruination, ruinousness, run, rupture,
   sabotage, scald, scathe, scission, scorch, scrape, scratch, scuff,
   second-degree burn, section, severance, sickening, slash, slashing,
   slicing, sore, splayfoot, splitting, spoiling, stab, stab wound,
   surgery, swayback, talipes, tear, tearing, teratology,
   third-degree burn, torticollis, trauma, truncation, valgus,
   weakening, wound, wounds immedicable, wrench, wryneck



Bouvier's Law Dictionary, Revised 6th Ed (1856):

MUTILATION, crim. law. The depriving a man of the use of any of those limbs,
which may be useful to him in fight, the loss of which amounts to mayhem. 1
Bl. Com. 130.