black box


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black box

n.
2. A usually large, square room with black walls used as a space for theatrical performances.
3.
a. A device or theoretical construct with known or specified performance characteristics but unknown or unspecified constituents and means of operation.
b. Something that is mysterious, especially as to function.

black′-box′ adj.

black box

n
1. (Electronics) a self-contained unit in an electronic or computer system whose circuitry need not be known to understand its function
2. (Aeronautics) an informal name for flight recorder

black′ box′


n.
1. any unit that forms part of an electronic circuit and has its function but not its components specified.
2. any small, usu. black, box containing a secret, mysterious, or complex mechanical or electronic device.
[1940–45]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.black box - equipment that records information about the performance of an aircraft during flight
recorder, recording equipment, recording machine - equipment for making records
Translations
العُلبَةُ السَّوْداء
černá skříňka
musta laatikko
boite noireboîte noire
fekete doboz
flugriti, svartur kassi
čierna skrinka
kara kutu

black box

n (Aer) → scatola nera

black

(blӕk) adjective
1. of the colour in which these words are printed. black paint.
2. without light. a black night; The night was black and starless.
3. dirty. Your hands are black!; black hands from lifting coal.
4. without milk. black coffee.
5. evil. black magic.
6. (often offensive. currently acceptable in the United States, South Africa etc) Negro, of African, West Indian descent.
7. (especially South Africa) coloured; of mixed descent (increasingly used by people of mixed descent to refer to themselves).
noun
1. the colour in which these words are printed. Black and white are opposites.
2. something (eg paint) black in colour. I've used up all the black.
3. (often with capital. often offensive: currently acceptable in the United states, South Africa etc) a Negro; a person of African, West Indian etc descent.
verb
to make black.
ˈblackness noun
ˈblacken verb
1. to make or become black. The sky blackened before the storm.
2. to make to seem bad. She blackened his character.
3. to clean with black polish. He blackened his boots.
black art/magic
magic performed for evil reasons. He tries to practise black magic.
ˈblackbird noun
a dark-coloured bird of the thrush family.
ˈblackboard noun
a dark-coloured board for writing on in chalk (used especially in schools).
black box
a built-in machine for automatic recording of the details of a plane's flight. They found the black box two miles away from the wreckage of the crashed plane.
the Black Death noun
the plague that killed large numbers of people in Europe in the 14th to 18th centuries.
black eye
an eye with bad bruising around it (eg from a punch). George gave me a black eye.
ˈblackhead noun
a small black-topped lump in a pore of the skin, especially of the face.
ˈblacklist noun
a list of people who are out of favour etc.
verb
to put (a person etc) on such a list.
ˈblackmail verb
to obtain money illegally from (a person), usually by threatening to make known something which the victim wants to keep secret.
noun
the act of blackmailing. money got by blackmail.
ˈblackmailer noun
Black Maria (məˈraiə)
a prison van. The policeman took the three suspects to the police station in a Black Maria.
black market
(a place for) the illegal buying and selling, at high prices, of goods that are scarce, rationed etc. coffee on the black market.
black marketeer
a person who sells goods on the black market.
ˈblackout noun
1. a period of darkness produced by putting out all lights. Accidents increase during a blackout.
2. a ban (on news etc). a blackout of news about the coup.
3. a period of unconsciousness. He has had several blackouts during his illness.
4. a brief, temporary loss of memory, as when an actor forgets his/her lines.
5. (also outage) a period of a general power failure.
6. (in the theatre) the putting out of the stage lights at the end of a scene etc.
black sheep
a member of a family or group who is unsatisfactory in some way. My brother is the black sheep of the family.
ˈblacksmith noun
a person who makes and repairs by hand things made of iron. The blacksmith made a new shoe for the horse.
black and blue
badly bruised. After the fight the boy was all black and blue.
black out
to lose consciousness. He blacked out for almost a minute.
in black and white
in writing or print. Would you put that down in black and white?
References in classic literature ?
And presently as he thought there recurred to his memory the little black box which lay hidden in a secret receptacle beneath a false top upon the table where his hand rested.
He had lighted the lantern swinging from the beams overhead that he might see to collect his belongings, and now he held the black box well in the rays of the lamplight, while he fingered at the clasp that fastened its lid.
When the winding was completed the Russian set a pointer upon a small dial at the side of the clockwork, then he replaced the cover upon the black box, and returned the entire machine to its hiding-place in the table.
The sailor, having made sure that Paulvitch had departed, returned to the forecastle, where he hid away his booty and turned into his bunk, while in the cabin that had belonged to the Russian there ticked on and on through the silences of the night the little mechanism in the small black box which held for the unconscious sleepers upon the ill-starred Kincaid the coming vengeance of the thwarted Russian.
Her luggage consisted of a black box, and of a well-worn leather bag which she carried in her hand.
Karnegie (who had cast the eye of a landlord on the black box in the passage) announced that one "Mrs.
The arrival of the body for interment (in an empty black box with the lid tumbling open), was the signal for a general joy which was much enhanced by the discovery, among the bearers, of an individual obnoxious to identification.
And all the time, I sat within a few feet of Wingrave, and I knew that in the black box before him were burning love letters from this woman, to the man whose code of honor would ever have protected her husband from disgrace; and I knew that I was listening to the thing which you, Aynesworth, and many of your fellow story writers, have so wisely and so ignorantly dilated upon--the vengeance of a woman denied.
I saw a black box lying in the churchyard, with skull and cross-bones painted on it, and was told that this was used in transferring remains to the cellar.
Fifteen hundred pound in a black box, fifteen hundred pound locked up, fifteen hundred pound put away and hid
The black box is overtly an algorithm that weighs various pieces of information about the applicant, and decides whether he or she should be accepted by the company and/or into which rate tier.