Search Result for "discussant": 
Wordnet 3.0

NOUN (1)

1. a participant in a formal discussion; 



The Collaborative International Dictionary of English v.0.48:

discussant \discussant\ n.
   a participant in a discussion, especially a member of a
   panel.

   Syn: panelist.
        [WordNet 1.5]


WordNet (r) 3.0 (2006):

discussant
    n 1: a participant in a formal discussion