[ih-jek-shuh n]


an act or instance of ejecting.
the state of being ejected.
something ejected, as lava.

Nearby words

  1. ejaculatory,
  2. ejaculatory duct,
  3. ejaculatory incompetence,
  4. eject,
  5. ejecta,
  6. ejection capsule,
  7. ejection fraction,
  8. ejection murmur,
  9. ejection period,
  10. ejection seat

Origin of ejection

1560–70; < Latin ējectiōn- (stem of ējectiō) a throwing out, equivalent to eject- (see eject) + -iōn- -ion

Related formsnon·e·jec·tion, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ejection

Word Origin and History for ejection



1560s, from Middle French ejection and directly from Latin ejectionem, noun of action from past participle stem of ejicere (see eject). The jet pilot's ejection seat (also ejector seat) is from 1945.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for ejection




The act of driving or casting out by physical force from within.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.