discussant

From discuss +‎ -ant.

• (UK) IPA^(key): /dɪˈskʌsənt/

discussant (plural discussants)

1. Someone involved in a discussion, especially a participant in a formal discussion or who has been assigned a particular role or topic. [from 20th c.]
   • 2005, Julie A. Cassiday, “Kirov and Death in The Great Citizen”, in Slavic Review, volume 64, number 4, page 799n:

     I would like to thank Cynthia Ruder, whose comments as panel discussant helped me to rework my original paper.

   • 2012, Faramerz Dabhoiwala, The Origins of Sex, Penguin, published 2013, page 319:

     The prominence given to readers' responses to topical issues [...] made concrete the sense of belonging to a large, active, and opinionated community of discussants.