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Meaning of continental margin

con'tinen'tal mar'gin

Pronunciation: [key]
— Physical Geog. Physical Geog.
  1. 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.