Tidal wave

exceptionally large destructive wave that may be caused by earthquake or storm or other type of natural disturbance; rising ripple of water in the ocean; something stunning in volume or amount; overwhelming feeling or expression

The term tidal wave can refer to:A tidal bore, a large movement of water formed by the funneling of the incoming tide into a river or narrow bayA tsunami, wave generally caused by an earthquake or underwater rock slide, that can cause substantial destructionThe crest (physics) of a tide as it moves around the Earth.
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Tsunami Seismic sea waves Geomedicine A superwave that can circle an island, and pound the otherwise protected leeward side with ↑ [more]Tidal wave - Community and Resources

Noun
1. a huge destructive wave (especially one caused by an earthquake)
(synonym) tsunami
(hypernym) wave, moving ridge

n.
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