Annunciator
Pronunciation : An*nun"ci*a`tor
Part of Speech : n.
Etymology : [L. annuntiator.]
Definition : 1. One who announces. Specifically: An officer in the church of Constantinople, whose business it was to inform the people of the festivals to be celebrated.
2. An indicator (as in a hotel) which designates the room where attendance is wanted.
Source : Webster's Unabridged Dictionary, 1913