[f. L. colloqui-um COLLOQU-Y + -IST.] One who takes part in a conversation; an interlocutor.
1792. Floyd, in Southey, Life Bell (1844), I. 441. Your colloquist has a right to be heard sometimes.
1874. T. Hardy, Madding Crowd, iii. He turned back to meet his colloquists eyes.
1881. Masson, De Quincey, 76. [He] had been made to figure as a colloquist in Wilsons Noctes.