Search Result for "backbiter": 
Wordnet 3.0

NOUN (1)

1. one who attacks the reputation of another by slander or libel;
[syn: defamer, maligner, slanderer, vilifier, libeler, backbiter, traducer]



The Collaborative International Dictionary of English v.0.48:

Backbiter \Back"bit`er\, n.
   One who backbites; a secret calumniator or detractor.
   [1913 Webster]


WordNet (r) 3.0 (2006):

backbiter
    n 1: one who attacks the reputation of another by slander or
         libel [syn: defamer, maligner, slanderer, vilifier,
         libeler, backbiter, traducer]