Definify.com

Webster 1913 Edition

Noun.

One who traduces; a slanderer; a calumniator.

Bp. Hall.

One who derives or deduces.

[Obs.]

Fuller.

Noun.

One that traduces; a slanderer; a calumniator.

traducer ‎(plural traducers)

One who traduces; one who maligns another by making malicious and false or defamatory statements.
Someone who traduces or translates from one language to another: a translator.
A utility that can facilitate traduction.

one who maligns another

someone or something that translates languages — see translator