tidal wave

noun

1. (not in technical use) a large, destructive ocean wave, produced by a seaquake, hurricane, or strong wind.

2. either of the two great wavelike swellings of the ocean surface that move around the earth on opposite sides and give rise to tide, caused by the attraction of the moon and sun.

3. any widespread or powerful movement, opinion, or tendency.

   a tidal wave of public indignation.

tidal wave

noun

1. a name (not accepted in technical usage) for tsunami

2. an unusually large incoming wave, often caused by high winds and spring tides

3. a forceful and widespread movement in public opinion, action, etc

tidal wave

1. Either of the two swells or crests of surface ocean water created by the gravitational effects of the Moon and Sun and circling the globe on opposite sides to create the daily periods of high and low tides.

2. Also called tidal bulge

3. An unusual rise in the level of water along a seacoast, as from a storm or a combination of wind and tide.

4. Also called storm surge

5. A tsunami.

Usage

The term tidal wave is used in everyday speech to refer to a gigantic and enormously destructive wave caused by an underwater earthquake or volcanic eruption—what scientists would properly call a tsunami. When scientists use the word tidal wave, they normally are referring to an unusually large wave or bulge of water that sometimes occurs around a high tide. These tidal waves are certainly big and powerful, but they are tiny in comparison with tsunamis.

Word History and Origins

Origin of tidal wave¹

First recorded in 1820–30

Example Sentences

The contest is staged in a former slate quarry that was flooded by a tidal wave in 1881.

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The recent surge in reactionary politics has been accompanied by a tidal wave of “trad” propaganda, which argues that feminism is bad for women and they would be happier in circumvented roles at home.

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He is worried that the "tidal wave of nicotine pouch use" that has hit Sweden - the home of the original, tobacco-based snus - will soon hit the UK.

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Ms Russell said: "This authority, like many, many across the nation, is trying very hard to deal with a tidal wave of demand with its hands tied behind its backs."

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Bill said the industrial revolution was a "tidal wave of change" but this progress came at a "great price".

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Related Words

• tsunami