ejecta

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ejecta

(i-jek -tă) Material excavated during the formation of a crater or basin. See also ejecta blanket; secondary craters.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

ejecta

[ē′jek·tə]
(geology)
Material which is discharged by a volcano.
(physiology)
Excrement.
(science and technology)
Material which is cast out.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.