'Slanderer' definitions:

Definition of 'slanderer'

From: WordNet
noun
One who attacks the reputation of another by slander or libel [syn: defamer, maligner, slanderer, vilifier, libeler, backbiter, traducer]

Definition of 'Slanderer'

From: GCIDE
  • Slanderer \Slan"der*er\, n. One who slanders; a defamer; a calumniator. --Jer. Taylor. [1913 Webster]

Synonyms of 'slanderer'

From: Moby Thesaurus