Search Result for "adducer": 
Wordnet 3.0

NOUN (1)

1. a discussant who offers an example or a reason or a proof; 



The Collaborative International Dictionary of English v.0.48:

Adducer \Ad*du"cer\, n.
   One who adduces.
   [1913 Webster]


WordNet (r) 3.0 (2006):

adducer
    n 1: a discussant who offers an example or a reason or a proof