tid·​al | \ ˈtī-dᵊl How to pronounce tidal (audio) \

Definition of tidal

1a : of, relating to, caused by, or having tides tidal cycles tidal erosion
b : periodically rising and falling or flowing and ebbing tidal waters
2 : dependent (as to the time of arrival or departure) upon the state of the tide a tidal steamer

Other Words from tidal

tidally \ ˈtī-​dᵊl-​ē How to pronounce tidal (audio) \ adverb

Examples of tidal in a Sentence

Recent Examples on the Web Barton led the agency for the next 23 years, aiding countless victims of floods, hurricanes, tidal waves and typhoid fever, as well as those wounded in the Spanish-American War. Kate Bolick, Smithsonian Magazine, 18 Nov. 2021 How did each team handle the tidal waves of momentum shifts that defined this game right from the opening minutes? Dave Hyde, sun-sentinel.com, 14 Nov. 2021 Two cyclones in the last two years destroyed the mud embankments that shielded the village from tidal waves. Arkansas Online, 8 Nov. 2021 About 78 acres of the park have been rehabilitated from blighted areas like debris fields into native habitats including oak woodlands, grasslands, coastal scrublands and tidal marshes. Julie Johnson, San Francisco Chronicle, 4 Nov. 2021 The weekend weather system was expected to bring some of the worst tidal flooding the region has seen in the past 10 to 20 years. Aya Elamroussi, CNN, 31 Oct. 2021 Parts of the Washington, Baltimore and Philadelphia metro areas could experience tidal flooding. NBC News, 29 Oct. 2021 The team assessed this natural solution with regard to Highway 37, a key traffic artery that runs between the north shore of the bay and tidal marshes, and that already floods during intense rainstorms and ultrahigh tides. Robin Meadows, Scientific American, 11 Aug. 2021 What’s more, roughly 900 structures on the two islands may experience daily tidal flooding by 2050 as sea levels are predicted to rise more than 2.5 feet, the organization said. BostonGlobe.com, 4 Aug. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tidal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of tidal

1807, in the meaning defined at sense 1a

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Dictionary Entries Near tidal



tidal amplitude

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Statistics for tidal

Last Updated

28 Nov 2021

Cite this Entry

“Tidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tidal. Accessed 4 Dec. 2021.

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More Definitions for tidal



English Language Learners Definition of tidal

: of or relating to tides : rising and falling at regular times


tid·​al | \ ˈtī-dᵊl How to pronounce tidal (audio) \

Kids Definition of tidal

: of or relating to tides : flowing and ebbing like tides


tid·​al | \ ˈtīd-ᵊl How to pronounce tidal (audio) \

Medical Definition of tidal

: of, relating to, or constituting tidal air interference with the normal tidal exchange of the lungs— F. R. Mautz & R. M. Hosler

More from Merriam-Webster on tidal

Nglish: Translation of tidal for Spanish Speakers

Britannica English: Translation of tidal for Arabic Speakers


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