Ejection

Ejection may refer to the following:

Ejection seat, safety device typically used to escape an aircraft in-flight
Ejection (sports), the act of officially removing someone from a game
Acoustic droplet ejection, a method of moving fluid using ultrasound
Coronal mass ejection, ejection of material from a sun's corona
Ejection fraction, the fraction of blood pumped with each heart beat
Ejecta, particles ejected from an impact crater or volcanic eruption