impact event
noun1
Astronomy, Natural sciences The collision between two or more celestial bodies, at least one of which usually being an asteroid or meteorite.
- Impactite is the term used for all rocks produced or affected by a hypervelocity impact event.2012, G. R. Osinski, Impact Cratering: Processes and Products:
- Related terms
- impact crater, impact winter
- Hyponyms
- giant impact theory, K-T extinction event