TIDAL

[adjective]This part of the river is tidal.a tidal riverThere is increasing interest in tidal power/energy (= electricity produced by using the rise and fall of the tide).A tidal wave is an extremely large wave caused by movement of the earth under the sea when there is an earthquake or a volcanic eruption, or (figurative) a sudden large increase(figurative) There was a tidal wave of complaints about aircraft noise. -tide (TIME) [suffix] old use - a period of timeChristmastideYuletideEastertideWhitsuntide