black box
noun/ˌblæk ˈbɒks/
/ˌblæk ˈbɑːks/
- (also flight recorder)a small machine in a plane that records all the details of each flight and is useful for finding out the cause of an accidentTopics Transport by airc2
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- [usually singular] (informal) a complicated piece of equipment, usually electronic, that you know produces particular results, but that you do not completely understand
Check pronunciation:
black box