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Ejection: Definition, Usage & Key Examples (2 meaning)

Meaning 1：force out process (ejection)

ejection 🔊

/ɪˈdʒɛkʃən/

The process of forcing something out or away, often with power or speed, like lava from a volcano or a pilot from a cockpit.

Ejection diagram: volcano violently expelling lava and ash into the sky.

force out process 🔊

➕

/fɔːrs aʊt ˈprɒsɛs/

The act or process of forcibly expelling something, often with violence or speed.

📁 Category：Natural Geography 🔖 Level：Intermediate

📘 Details & Usage

📖 Root Explanation

From Latin 'eicere' (to throw out), from 'ex-' (out) + 'jacere' (to throw).

💡 Mnemonic

Eject sounds like 'jet' – imagine something being jetted out quickly.

📖 Example

The sudden ejection of lava from the volcano created a spectacular, yet terrifying, display in the night sky. 🔊 The rapid forcing out of lava from the volcano produced a dramatic and frightening scene at night.

🔗 Collocations

volcanic ejection – the expulsion of material from a volcano

ejection velocity – the speed at which something is forced out

forceful ejection – a powerful act of throwing something out

🔄 Synonyms

expulsion (n.) – the act of forcing someone or something out

emission (n.) – the production and discharge of something

discharge (n.) – the action of releasing or ejecting something

🚫 Antonyms

insertion (n.) – the act of putting something in

intake (n.) – the process of taking something in

admission (n.) – the act of allowing entry

🌱 Derivatives

eject (v.) – to force or throw out

ejector (n.) – a device that ejects something

ejective (adj.) – relating to or causing ejection

📖 Cultural Story

Derived from Latin 'ejectionem', meaning 'a throwing out'. Commonly used in aviation for ejection seats, a technology developed in WWII for pilot safety.

Meaning 2：expelled object (ejection)

ejection 🔊

/ɪˈdʒɛkʃən/

The thing that has been forced out or expelled. It's not the act of throwing out, but the object itself that got thrown out.

Ejection seat illustration: aircraft pilot seat being forcibly expelled during emergency.

expelled object 🔊

➕

/ɪkˈspɛld ˈɒbdʒɛkt/

The object that has been forced out or expelled, such as an ejection seat in aviation.

📁 Category：Technological Inventions 🔖 Level：Intermediate

📘 Details & Usage

📖 Example

The pilot's life was saved by the automatic deployment of the parachute after the ejection of the cockpit seat. 🔊 The pilot survived due to the parachute's automatic opening following the expulsion of the cockpit seat.

🔗 Collocations

ejection seat – a device that propels a pilot out of an aircraft

cartridge ejection – the removal of a spent cartridge from a firearm

object ejection – the act of expelling a physical item

🔄 Synonyms

expellee (n.) – a person or thing that has been expelled

projectile (n.) – an object propelled through the air

output (n.) – something produced or discharged

🚫 Antonyms

retention (n.) – the continued possession or use of something

containment (n.) – the action of keeping something within limits

🌱 Derivatives

ejectable (adj.) – capable of being ejected

ejectionless (adj.) – without ejection