ejec·​ta | \ i-ˈjek-tə How to pronounce ejecta (audio) \

Definition of ejecta

: material thrown out (as from a volcano)

Examples of ejecta in a Sentence

Recent Examples on the Web Initially, as the bottle is uncorked, the gas mixture is partially blocked by the cork, so the ejecta can't reach the speed of sound. Jennifer Ouellette, Ars Technica, 8 June 2022 That rapid spin would have briefly counteracted the gravitational collapse just long enough to produce a fast tail of heavy kilonova ejecta, which drove the shock wave. Jennifer Ouellette, Ars Technica, 3 Mar. 2022 As that heavy ejecta decelerated over time, its kinetic energy was converted into heat by the shocks. Jennifer Ouellette, Ars Technica, 3 Mar. 2022 Initially, some of the ejecta would be moving at high velocity (bullet speeds). Kyle Mizokami, Popular Mechanics, 24 June 2021 Some ejecta would move laterally, some would travel upward then fall back down up to 91 m from the impact site. Kyle Mizokami, Popular Mechanics, 24 June 2021 The area Zhurong will study first features large sand dunes and boulders, possible ejecta from nearby impact craters. David Bressan, Forbes, 20 May 2021 But a little bit of ejecta, the bits moving fastest after DART’s impact, could reach Earth’s sky relatively quickly and give scientists an opportunity to see the asteroid’s makeup. Michael Ruiz, Fox News, 14 May 2020 The ejecta curtain, or plume of material created by the impact, never fully detached from the surface, according to the study. Ashley Strickland, CNN, 19 Mar. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ejecta.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ejecta

1886, in the meaning defined above

History and Etymology for ejecta

New Latin, from Latin, neuter plural of ejectus

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Last Updated

3 Jul 2022

Cite this Entry

“Ejecta.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ejecta. Accessed 9 Aug. 2022.

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More Definitions for ejecta


ejec·​ta | \ i-ˈjek-tə How to pronounce ejecta (audio) \

Medical Definition of ejecta

: matter (as vomit) ejected from the body


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