ejection

The term ejection is used in astrophysics, including:

• coronal mass ejection - a massive burst of solar wind.
• jets, e.g., ejection of mass from protostars, galaxies, etc.
• ejection of mass from mergers such as neutron star mergers.
• ejection of mass from explosions such as supernovae.
• ejection of a body or bodies form an orbit, e.g., through an interaction with an additional body.