noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A pit-like structure created by an impacting meteoroid, asteroid or comet.

Synonyms

All synonyms

calderacraterimpact craterimpact crater

Etymology

1963, from astro- + Ancient Greek βλῆμα (blêma, “wound from a missile”)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.