loudspeaker

American  

[loud-spee-ker] / ˈlaʊdˌspi kər /

noun

1. any of various devices, usually electronic, by which speech, music, etc., can be intensified and made audible throughout a room, hall, or the like.

2. Audio.

   1. a device for transforming electric signals into audible sound, most frequently used to reproduce speech and music.

   2. speaker.

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loudspeaker British  

/ ˌlaʊdˈspiːkə /

noun

1. Also called: reproducer.  Sometimes shortened to: speaker.  a device for converting audio-frequency signals into the equivalent sound waves by means of a vibrating conical diaphragm

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Etymology

Origin of loudspeaker

First recorded in 1880–85; loud + speaker

Example Sentences

Dion also recorded a French version of the video message announcing the tour, which was played over loudspeakers as the Tower was illuminated by purple lights.

From BBC

The loudspeaker in the men’s camp was sounding the signal for roll call.

From Literature

This technique records electrical activity between the inner ear and the brain using small electrodes placed on the animals while short bursts of sound are played through a small loudspeaker.

From Science Daily

Many are small Chinese tankers that make their presence and origin known to the Revolutionary Guard through loudspeakers and shortwave radio.

From The Wall Street Journal

Tests of the emergency alert and loudspeaker system at RAF Fairford, known as the Giant Voice, have been running since 10:30 GMT and are set to continue until 15:00.

From BBC

Related Words

• bullhorn
• megaphone
• public address system