BLACK BOX Definition & Meaning

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black box

noun

any unit that forms part of an electronic circuit and that has its function, but not its components, specified.
any comparatively small, usually black, box containing a secret, mysterious, or complex mechanical or electronic device.
Aeronautics.��an electronic device, such as a flight recorder, that can be removed from an aircraft as a single package.
Automotive.��a device in an electronic ignition system that generates electrical pulses.

black box

noun

a self-contained unit in an electronic or computer system whose circuitry need not be known to understand its function
an informal name for flight recorder

black box

A crash-resistant steel container that holds instruments that record performance data in airplanes. The data are used to analyze the causes of accidents.

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51�Թ� History and Origins

Origin of black box¹

First recorded in 1940–45

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Example Sentences

Examples have not been reviewed.

Both the CVR and FDR collectively form what is commonly known as the "black box" of a plane.

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On Friday, a black box was found at the site of the crash which India's civil aviation minister, Ram Mohan Naidu Kinjarapu, said would "significantly aid the inquiry" into the disaster.

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Planes usually carry two black boxes - small but tough electronic data recorders.

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In the coming days a complex investigation involving the plane's black box - which records flight data - and an examination of debris will commence.

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A much fuller picture will come once the plane's black boxes - the electronic recording devices that store vital flight information - have been recovered.

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