an electronic device aboard an aircraft that automatically records some aspects of the aircraft's performance in flight.
Origin of flight recorder
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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 crashAlso called: black box
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012