Dictionary.com
Thesaurus.com
Synonyms

ejection

American  
[ih-jek-shuhn] / ɪˈdʒɛk ʃən /

noun

  1. an act or instance of ejecting.

  2. the state of being ejected.

  3. something ejected, as lava.


Other Word Forms

Etymology

Origin of ejection

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

Explanation

The action of something being forced or thrown out is called ejection. If you notice an ejection of black smoke from your car's tail pipe, you'll probably want to take it to a repair shop. There is the physical kind of ejection, when a substance or object is propelled or projected away from or out of something else, like the ejection of a bullet from a gun or the ejection of lava from a volcano. Another kind of ejection happens when someone is instructed or forced to leave, like the ejection of a rowdy customer from a bar or an unpopular politician from public office. The Latin root, eicere, means "throw out."

Keep Reading on Vocabulary.com

Vocabulary lists containing ejection

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Previous computer simulations and analyses of meteorites found on Earth have shown that organic material can survive both ejection from a planet and the trip through interplanetary space.

From Science Daily • Jun. 26, 2026

Additional detail from the echocardiogram, such as the ejection fraction—the percentage of blood pumped with each heart contraction—would also provide a fuller picture of the president’s health.

From The Wall Street Journal • May 31, 2026

When the ejection was announced, Wembanyama appeared to ask Spurs team-mate Harrison Barnes: "What does that mean?"

From BBC • May 11, 2026

American pilots do have a small kit in their ejection chair or on their flight suit to assist them.

From Barron's • Apr. 3, 2026

I ran through the ejection procedures, and everything worked as advertised, except that the ground rushed up so fast I wasn’t prepared for it.

From "Flying to the Moon: An Astronaut's Story" by Michael Collins

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "ejection" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com