black box

[/blæk bɑks/]
nounpl: black boxes
caixa-preta
1. A flight data recorder on an aircraft that records technical information about a flight
The investigators retrieved the black box from the wreckage to determine the cause of the crash.
Os investigadores recuperaram a caixa-preta dos destroços para determinar a causa do acidente.
2. Any system or device whose internal workings are mysterious or not fully understood by the user
For many people, the stock market remains a black box that is difficult to understand.
Para muitas pessoas, o mercado de ações permanece uma caixa-preta difícil de compreender.
3. In science and engineering, a system analyzed in terms of its inputs and outputs without knowledge of its internal structure
The AI algorithm works as a black box, making predictions without explaining its reasoning.
O algoritmo de IA funciona como uma caixa-preta, fazendo previsões sem explicar seu raciocínio.
The term originated from aviation after the 1947 Bermuda aircraft accident investigation. In Brazilian culture, 'caixa-preta' is widely understood in aviation contexts and increasingly in technology and finance discussions. The metaphor has gained prominence with discussions about AI transparency and algorithmic accountability.
NYC Slang
mystery machine, puzzle box
Synonyms / Sinônimos
flight data recordermystery boxopaque systemunknown system
Antonyms / Antônimos
white boxtransparent systemopen systemclear box

Regional Variations

General Brazilian
caixa-preta
Standard term used in aviation and technology contexts
São Paulo
caixa-preta
Common usage in business and technology sectors
Rio de Janeiro
caixa-preta
Standard usage, sometimes explained as 'sistema opaco' in informal speech
Portugal
caixa-negra
Alternative translation used in European Portuguese; both terms are understood

Related Words

cockpit voice recorderaircraft dataflight investigationsystem analysisartificial intelligencetransparencyalgorithm

Related Idioms & Phrases

open the black box
black box testing
black box problem
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