ejecta

noun (used with a singular or plural verb)

1. matter ejected, as from a volcano in eruption.

pl n

1. matter thrown out of a crater by an erupting volcano or during a meteorite impact

n.

1. Something that has been ejected from the body.ejection

1. Ejected matter, especially from an erupting volcano. Volcanic ejecta usually includes volcanic glass, ash, and rock fragments.