What does the word disputant mean?

Usage examples for disputant

  1. " It will be a bad lookout indeed for the logic and rhetoric of Alexandria if an old professor and disputant cannot succeed in turning a young girl's resolutions upside down. – The Complete Historical Romances of Georg Ebers by Georg Ebers
  2. What was the use of arguing with such a disputant? – The Case of Richard Meynell by Mrs. Humphrey Ward
  3. If any disputant, by supposing ellipses, will make objectives of what I call nominatives absolute, so be it; but I insist that interjections, in fact, never " require" or " govern" one case more than an other. – The Grammar of English Grammars by Goold Brown