tidewater

noun

1. water affected by the flow and ebb of the tide.
2. the water covering tideland at flood tide.
3. seacoast.

noun

1. water that advances and recedes with the tide
2. water that covers land that is dry at low tide
3. US
   1. coastal land drained by tidal streams
   2. (as modifier)tidewater regions

1. Water that inundates land at flood tide.
2. Water affected by the tides, especially tidal streams.
3. Low coastal land drained by tidal streams.