noun
: the portion of the submerged margin of a continent or island that has been planed off by marine abrasion as distinct from the portion that has been built up to its present level by the deposit of marine sediments
noun
: the portion of the submerged margin of a continent or island that has been planed off by marine abrasion as distinct from the portion that has been built up to its present level by the deposit of marine sediments
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012