[1] : The Collaborative International Dictionary of English v.0.48

wrecker \wreck"er\, n.
   1. one who causes a wreck, as by false lights, and the like.
      1913 webster

   2. one who searches fro, or works upon, the wrecks of
      vessels, etc. specifically:
      a one who visits a wreck for the purpose of plunder.
      b one who is employed in saving property or lives from a
          wrecked vessel, or in saving the vessel; as, the
          wreckers of key west.
          1913 webster

   3. a vessel employed by wreckers.
      1913 webster

[2] : WordNet (r) 2.0

wrecker
     n 1: someone who demolishes or dismantles buildings as a job
     2: someone who commits sabotage or deliberately causes wrecks
        syn: saboteur, diversionist
     3: a truck equipped to hoist and pull wrecked cars or to
        remove cars from no-parking zones syn: tow truck, tow
        car
see also:
saboteur diversionist tow truck tow car 

[3] : Moby Thesaurus II by Grady Ward, 1.0

49 moby thesaurus words for "wrecker":
   animal, annihilator, anthropophagite, arsonist, barbarian, beast,
   biblioclast, bomber, brute, burner, cannibal, demolisher,
   depredator, despoiler, destroyer, dynamitard, dynamiter,
   exterminator, forager, forayer, freebooter, hun, hyena, iconoclast,
   idol breaker, idoloclast, looter, man-eater, marauder, nihilist,
   pillager, plunderer, raider, rapparee, ravager, ravisher, reiver,
   rifler, ruiner, sacker, savage, shark, spoiler, spoliator,
   syndicalist, terrorist, tiger, vandal, wild man

Wrecker >> W Words
Wrecker, definition of term: Wrecker
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