Relating to tides.

In a tidal manner. / Using the tides.

The quality of being tidal.

(astronomy) Alternative form of tidal locking / A sealock.

Tidal energy.

(physics) The energy contained in a tide flowing in or out of an estuary or similar enclosed place, especially that part of the energy that can be converted to electricity.

plural of tidal volume

plural of tidal lock

(nautical) The flow of the water caused by rising and falling tide

(nautical, navigation) A diamond-shaped symbol on a chart, indicating the direction and speed of tidal streams