- a device that gives a visual indication as to which of a number of electric circuits has operated, such as an indicator in a hotel showing in which room a bell has been rung
- a device giving an audible signal indicating the position of a train
WordReference Random House Unabridged Dictionary of American English © 2020
an•nun•ci•a•tor (ə nun′sē ā′tər),USA pronunciation n.
(ə nun′sē ā′tər),USA pronunciation adj.
- an announcer.
- Electricitya signaling apparatus, generally used in conjunction with a buzzer, that displays a visual indication when energized by electric current.
- see annunciate, -tor 1745–55; annūntiātor
Collins Concise English Dictionary © HarperCollins Publishers::
annunciator /əˈnʌnsɪˌeɪtə/ n
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