astrobleme

American  

[as-truh-bleem] / ˈæs trəˌblim /

noun

Geology, Astronomy.

1. an erosional scar on the earth's surface, produced by the impact of a cosmic body, as a meteorite.

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astrobleme British  

/ ˈæstrəˌbliːm /

noun

1. a mark on the earth's surface, usually circular, formed by a large ancient meteorite impact

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Etymology

Origin of astrobleme

First recorded in 1965–70; astro- + -bleme (from Greek blêma “shot, wound”)