Definition of ejecta in English:


Syllabification: e·jec·ta
Pronunciation: /iˈjektə


[often treated as singular]
  • Material that is forced or thrown out, especially as a result of volcanic eruption, meteoritic impact, or stellar explosion.
    More example sentences
    • Melosh et al. proposed that wildfires were ignited by the thermal energy radiated by re-entering ejecta following the asteroid impact.
    • The stellar ejecta from the explosion initially trail behind the shock wave.
    • Impact ejecta deposits show a non-linear decrease in thickness with radial distance from the centre of the source crater.


late 19th century: from Latin, 'things thrown out', neuter plural of ejectus 'thrown out', from eicere (see eject).

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