an airplane seat that can be ejected with the pilot in an emergency.
Origin of ejection seat
First recorded in 1940–45
Also called ejector seat.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a seat, esp as fitted to military aircraft, that is fired by a cartridge or rocket to eject the occupant from the aircraft in an emergency
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