public address system

Definitions

Aviation

Electronics

  • (written as public-address system)
    A system, such as that utilized in airports or shopping centers, which serves convey voice messages through a distributed group of speakers powered by one or more amplifiers. Its abbreviation is PA system.

Information & Library Science

  • noun a loudspeaker and microphone which enables a speaker to be heard by a large group of people

Travel

  • noun a system of loudspeakers, by which messages can be given to the public in e.g. a supermarket, exhibition centre or airport.
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