English Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition black box in British English

black box noun

[countable] noun
1

a piece of equipment in a plane used for recording details about a flight, especially to try to find out the cause of a problem or crash

Synonyms and related words
2

a computer or similar piece of equipment that performs a complicated job, although the person using it does not understand how it works

Synonyms and related words
Definition black box in British English