'Debater' definitions:

Definition of 'debater'

From: WordNet
noun
Someone who engages in debate [syn: debater, arguer]

Definition of 'Debater'

From: GCIDE
  • Debater \De*bat"er\, n. One who debates; one given to argument; a disputant; a controvertist. [1913 Webster]
  • Debate where leisure serves with dull debaters. --Shak. [1913 Webster]