/ Dictionary / Index C continental margin: Meaning and Definition of Find definitions for: con'tinen'tal mar'gin Pronunciation: [key] — Physical Geog. Physical Geog. the offshore zone, consisting of the continental shelf, slope, and rise, that separates the dry-land portion of a continent from the deep ocean floor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. continentalize continental quilt Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language