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Undertow is a noun that means the current beneath the surface of the water or an underlying force or tendency. Learn more about its synonyms, examples, word history, and related entries.
In physical oceanography, undertow is the undercurrent that moves offshore while waves approach the shore. Undertow is a natural and universal feature for almost any large body of water; it is a return flow compensating for the onshore-directed average transport of water by the waves in the zone above the wave troughs.
Undertow is a strong current flowing underwater in a different direction from the way the water on the surface is moving, especially one that flows away from the land at the same time as a wave hits the beach. See examples, pronunciation and translations of undertow in English and other languages.
Undertow is a noun that means a strong current flowing underwater in a different direction to the surface water, especially one that flows away from the land at the same time as a wave hits the beach. Learn how to use this word in sentences, see synonyms and antonyms, and find translations in other languages.
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Undertow is the term for the return flow of water after breaking waves on the shore. Learn how undertow can create rip currents, how it varies with wave size and shape, and how to avoid it as a swimmer.
- The Editors of Encyclopaedia Britannica
May 13, 2014 · Learn how undertow, the current that pulls water back into the ocean after a wave breaks on the beach, affects shorelines and sand dunes. Find out how researchers use linear wave theory to model undertow and improve erosion predictions.
Learn the differences between rip currents, undertows and rip tides, three main dangerous ocean currents that can pose a threat to surfers and beachgoers. Find out how to identify and survive them, and how to choose the right beach for your surfing session.
