flight recorder

noun
an electronic device aboard an aircraft that automatically records some aspects of the aircraft's performance in flight.

Origin:
1945–50

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
flight recorder
 
n
Also called: black box an electronic device fitted to an aircraft for storing information concerning its performance in flight. It is often used to determine the cause of a crash

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
The plane did not have a flight recorder, nor was it required to have one.
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