annunciator

American  

[uh-nuhn-see-ey-ter] / əˈnʌn siˌeɪ tər /

noun

1. an announcer.

2. a signaling apparatus, generally used in conjunction with a buzzer, that displays a visual indication when energized by electric current.

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annunciator British  

/ əˈnʌnsɪˌeɪtə /

noun

1. 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

2. a device giving an audible signal indicating the position of a train

3. a less common word for announcer

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Other Word Forms

• annunciatory adjective

Etymology

Origin of annunciator

1745–55; annūntiātor; annunciate, -tor

Example Sentences

In 1905, the red car waiting room at the station at Sixth and Main replaced its departure “annunciator” electric bell with “sweet-toned triangles of steel,” and put one in the women’s waiting room too.

From Los Angeles Times

So I devised a machine somewhat on the plan of the hotel annunciator that was invented long afterward, only mine was a great deal more complex.

From Project Gutenberg

Tools, bells, batteries, unusual circuits, burglar alarms, annunciator systems, thermostats, circuit breakers, time alarms, and other apparatus used in bell circuits are described from the standpoints of their application, construction and repair.

From Project Gutenberg

He then investigated the subject of telegraphy, and in 1867 patented a telegraphic switch and annunciator.

From Project Gutenberg

Luther challenged the pope and his devotees to justify portions of their creed and practices, and Calef did the same to Cotton Mather, as a leading annunciator and expounder of the witchcraft creed.

From Project Gutenberg