Dictionary
an•nun•ci•a•tor
Pronunciation: (u-nun'sē-ā"tur), [key]—
n.
1. an announcer.
2. a signaling apparatus, generally used in conjunction with a buzzer, that displays a visual indication when energized by electric current.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.