slanderer

from WordNet (r) 3.0 (2006)
slanderer
    n 1: one who attacks the reputation of another by slander or
         libel [syn: {defamer}, {maligner}, {slanderer}, {vilifier},
         {libeler}, {backbiter}, {traducer}]
from The Collaborative International Dictionary of English v.0.48
Slanderer \Slan"der*er\, n.
   One who slanders; a defamer; a calumniator. --Jer. Taylor.
   [1913 Webster]
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
SLANDERER. A calumniator, who maliciously and without reason imputes a crime 
or fault to another, of which he is innocent. 
     2. For this offence, when the slander is merely verbal, the remedy is 
an action on the case for damages; when it is reduced to writing or 
printing, it is a libel. (q.v.)
from Moby Thesaurus II by Grady Ward, 1.0
22 Moby Thesaurus words for "slanderer":
      Thersites, backbiter, belittler, calumniator, caustic critic,
      cynic, debunker, decrier, defamer, deflater, depreciator,
      derogator, detractor, disparager, hatchet man, knocker, libeler,
      muckraker, mudslinger, railer, social critic, traducer
antiflux / dictionary / slanderer
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