Source : Webster's Revised Unabridged Dictionary (1913)

Prolocutor \Prol`o*cu"tor\, n. [L., from proloqui, p. p.
   prolocutus, to speak out; pro for + loqui to speak.]
   1. One who speaks for another. --Jeffrey.

   2. The presiding officer of a convocation. --Macaulay.