tid·al | \ ˈtī-dᵊl \

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 \ adverb

Examples of tidal in a Sentence

Recent Examples on the Web

Thousands - tens of thousands, really - of fingernail-size menhaden hung in there, moving like a giant, glittering amoeba, all facing into the flow and feeding on phytoplankton carried to them on the conveyor belt that was the tidal current. Shannon Tompkins, Houston Chronicle, "Bay food chain comes to life with tide change," 14 Apr. 2018 Years ago, before 2010, the tidal gauge at Virginia Key showed high tide floods maybe twice a year. Alex Harris, miamiherald, "Miami streets could flood every single day by 2070 under many climate models, NOAA says | Miami Herald," 30 Mar. 2018 Even inland locations including Philadelphia and the Poconos are feeling the heat and its many impacts, as the tidal Delaware River has old shoreline structures in place that might not stop future flooding. Frank Kummer, Philly.com, "New Jersey is getting hotter faster than most of the U.S. Get ready to move to higher ground," 18 June 2018 Citizen science volunteers stake the cages to the inner tidal area of the Puget Sound at low tide, and the scientists collect them after several months. Susan Scutti, CNN, "Mussels in Washington's Puget Sound test positive for opioids, other drugs," 25 May 2018 Instead, you are pulled you into its unceasing tidal sweep, as tickled as a toddler with a bedtime story that promises endless permutations. Ben Brantley, New York Times, "Review: ‘The Lehman Trilogy’ Is a Transfixing Epic of Riches and Ruin," 13 July 2018 In fact, because of tidal conditions forecast for Le Grand Départ this year, the cyclists will not ride across the slippery Gois, but instead cross the bridge built in 1971. Mary Winston Nicklin, Condé Nast Traveler, "The Small Island Where the Tour de France Begins Is Actually a Vacationer's Paradise," 3 July 2018 The plane's recovery was complicated by the fact that the plane crashed in an area of silt-laden water with a strong tidal pull. Laurel Andrews, Anchorage Daily News, "First findings released in Susitna River fatal midair plane collision," 22 June 2018 The town got its start on the river, a 13-mile-long tidal stream that once had regular steamboat service to San Francisco, like a kind of mini-Mississippi. Carl Nolte, SFChronicle.com, "Picturesque Petaluma perfect for sunny getaway," 23 June 2018

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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Statistics for tidal

Last Updated

17 Sep 2018

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Time Traveler for tidal

The first known use of tidal was in 1807

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English Language Learners Definition of tidal

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


tid·al | \ ˈtī-dᵊl \

Kids Definition of tidal

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


tid·al | \ ˈtīd-ᵊl \

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

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Comments on tidal

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alleviating pain or harshness

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