loudspeaker

[ loud-spee-ker ]
/ ˈlaʊdˌspi kər /

noun

any of various devices, usually electronic, by which speech, music, etc., can be intensified and made audible throughout a room, hall, or the like.
Audio.
  1. a device for transforming electric signals into audible sound, most frequently used to reproduce speech and music.
  2. speaker(def 4).

Origin of loudspeaker

First recorded in 1880–85; loud + speaker

Example sentences from the Web for loudspeaker

British Dictionary definitions for loudspeaker

loudspeaker
/ (ˌlaʊdˈspiːkə) /

noun

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