/ Dictionary / Index E erosion surface: Meaning and Definition of Find definitions for: ero'sion sur"face Pronunciation: [key] — Geol. Geol. an eroded land surface, esp. one that is nearly flat and featureless. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. erosion erosive Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language