Prolocutor
Pronunciation : Prol`o*cu"tor
Part of Speech : n.
Etymology : [L., from proloqui, p. p. prolocutus, to speak out; pro for + loqui to speak.]
Definition : 1. One who speaks for another. Jeffrey.
2. The presiding officer of a convocation. Macaulay.
Source : Webster's Unabridged Dictionary, 1913