Source : Webster's Revised Unabridged Dictionary (1913)

Interlocutor \In`ter*loc"u*tor\ (?; 277), n. [Cf. F.
   interlocuteur.]
   1. One who takes part in dialogue or conversation; a talker,
      interpreter, or questioner. --Jer. Taylor.

   2. (Law) An interlocutory judgment or sentence.

Source : WordNet®

interlocutor
     n 1: the performer in the middle of a minstrel line who engages
          the others in talk [syn: {middleman}]
     2: a person who takes part in a conversation [syn: {conversational
        partner}]