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

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Other Words from tidal

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

Examples of tidal in a Sentence

Recent Examples on the Web King tides happen when the orbits and alignment of the Earth, moon and sun combine to produce the greatest tidal effects of the year, the state parks department said. oregonlive, "With ‘king tides’ predicted next week, park officials urge caution for beachgoers," 13 Nov. 2020 Neither are great places to swim because of swift tidal currents, but both are popular with fishermen and offer some of the best shelling on the islands. Cassie Armstrong, orlandosentinel.com, "Relax, you’re on (Sanibel) island time," 12 Nov. 2020 Nearly half of the river is considered a tidal estuary—where salt water from the ocean mixes with freshwater from the river’s northern tributaries. Elissaveta M. Brandon, Smithsonian Magazine, "How New York City Is Reclaiming Its Piers," 26 Oct. 2020 The air taxi drops us off in a sprawling tidal grassland to the south of Chenik. Acacia Johnson, National Geographic, "For this family, keeping Alaska wild and pristine is a decades-long mission," 25 Sep. 2020 High tidal waves were seen in both countries and led to flooding on parts of the Izmir coast. Saphora Smith, NBC News, "Earthquake hits coastal Turkey and Greece, killing at least 14," 30 Oct. 2020 Defined by three rivers—the May, Cooper, and New—the Bluff, as locals call it, is a dazzling expanse of maritime forests, tidal estuaries, winding waterways, and arching oaks draped with Spanish moss. Jessica Dailey, Town & Country, "South Carolina’s Palmetto Bluff Makes Everyday Life Feel Like Vacation," 23 Oct. 2020 Some serious blue crabbers stretch lengthy cord between posts in shallow tidal areas, with a dozen or more baits hanging below off various lines. Popular Science, "14 wild edibles you can pull right out of the ocean," 19 Oct. 2020 The parish is preparing to activate the emergency operations center, and public works personnel are pre-positioning high water signs in low-lying areas in case tidal, wind or rain conditions require the closing of roads, the news release said. Sara Pagones | Staff Writer, NOLA.com, "St. Tammany officials prepare for hurricane, open sandbag stations," 6 Oct. 2020

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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Time Traveler for tidal

Time Traveler

The first known use of tidal was in 1807

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Statistics for tidal

Last Updated

15 Nov 2020

Cite this Entry

“Tidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tidal. Accessed 27 Nov. 2020.

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More Definitions for tidal


How to pronounce tidal (audio)

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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