Middle Atlantic States[mĭdˌăt-lănˈtĭk]
Middle Atlantic States definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
New York, New Jersey, Pennsylvania, Delaware, and Maryland
Middle Atlantic States definition by American Heritage Dictionary
also Mid-At·lan·tic States
A region of the eastern United States including New York, Pennsylvania, New Jersey, and usually Delaware and Maryland.