flight recorder definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an electronic module, designed to survive a crash, fire, etc., that records flight data, as altitude, airspeed, and aircrew conversations
flight recorder definition by American Heritage Dictionary
A crashworthy device that records data about an aircraft's flight, such as airspeed, heading, and the procedures of the pilot. Also called black box.