Breadcrumb Home > Dictionary > Index I impact crater: Meaning and Definition of Find definitions for: im'pact cra"ter Pronunciation: [key] — Astron., Geol. Astron.,Geol. crater (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. impact impacted ✖ Related Content Daily Word Quiz: contretemps Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language