tidewater

Short definition from Wiktionary

Noun

1. 1
   Water affected by the flow of the tide, especially tidal streams.
2. 2
   The seaboard.
3. 3
   A structure or house with large wraparound porches and hip roofs designed for wet and hot climates.

Proper noun

1. 1
   A region in Virginia and Maryland, United States, along the coast and the Chesapeake Bay.