The Collaborative International Dictionary of English v.0.48:

Carcass \Car"cass\ (k[aum]r"kas), n.; pl. Carcasses. [Written
   also carcase.] [F. carcasse, fr. It. carcassa, fr. L. caro
   flesh + capsa chest, box, case. Cf. Carnal, Case a
   sheath.]
   1. A dead body, whether of man or beast; a corpse; now
      commonly the dead body of a beast.
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            He turned to see the carcass of the lion. --Judges
                                                  xiv. 8.
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            This kept thousands in the town whose carcasses went
            into the great pits by cartloads.     --De Foe.
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   2. The living body; -- now commonly used in contempt or
      ridicule. "To pamper his own carcass." --South.
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            Lovely her face; was ne'er so fair a creature.
            For earthly carcass had a heavenly feature.
                                                  --Oldham.
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   3. The abandoned and decaying remains of some bulky and once
      comely thing, as a ship; the skeleton, or the uncovered or
      unfinished frame, of a thing.
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            A rotten carcass of a boat.           --Shak.
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   4. (Mil.) A hollow case or shell, filled with combustibles,
      to be thrown from a mortar or howitzer, to set fire to
      buldings, ships, etc.
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            A discharge of carcasses and bombshells. --W. Iving.
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WordNet (r) 3.0 (2006):

carcass
    n 1: the dead body of an animal especially one slaughtered and
         dressed for food [syn: carcase, carcass]

Moby Thesaurus II by Grady Ward, 1.0:

76 Moby Thesaurus words for "carcass":
   aerial bomb, anatomy, antipersonnel bomb, appendicular skeleton,
   ashes, axial skeleton, body, bomb, bombshell, bones, cadaver,
   carrion, clay, clod, concussion grenade, corpse, corpus,
   corpus delicti, crowbait, dead body, dead man, dead person,
   decedent, depth bomb, depth charge, dry bones, dust, earth,
   embalmed corpse, exoskeleton, figure, fire bomb, flesh,
   food for worms, form, frame, gas grenade, grenade, hand grenade,
   hulk, incendiary bomb, incendiary grenade, infernal machine,
   late lamented, material body, mere wreck, mortal remains,
   mummification, mummy, nervous wreck, organic remains, person,
   petard, physical body, physique, rattletrap, relics, reliquiae,
   remains, ruin, ruins, skeleton, soma, stiff, tear-gas grenade,
   tenement of clay, the dead, the deceased, the defunct,
   the departed, the loved one, time bomb, torso, trunk, wall grenade,
   wreck