annunciator Meaning, Definition & Usage
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noun an indicator that announces which electrical circuit has been active (as on a telephone switchboard)
WordNet
An*nun"ci*a`tor noun
Etymology
L.Definitions
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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. -
An indicator (as in a hotel) which designates the room where attendance is wanted.