Portland as seen from Casco Bay.
Casco Bay 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.
bay on the SW coast of Maine, on which Portland is located
Origin: ; from Algonquian, muddy: for the mud flats in the bay
Casco Bay definition by American Heritage Dictionary
A deep inlet of the Atlantic Ocean in southwest Maine. The bay, with its wooded, hilly islands, is a popular vacation area.