adducer
ad·du·cer
noun
1.
a discussant who offers an example or a reason or a proof
Origin
From adduce + -er.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.