tidal

adjective
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

San Francisco didn’t see any tidal flooding last year, the report said. Kurtis Alexander, SFChronicle.com, "High-tide flooding poses big problem for U.S., California, federal scientists warn," 10 July 2019 Tide pool fans are expected to flock to the Pacific shoreline for these major tidal events this month, then again in early July and early August. Patrick May, The Mercury News, "How low can you go? West Coast tides this summer should be astonishing," 3 June 2019 Today, Mendéz’s model for habitability takes into consideration rocky planets’ ability to support surface water, the age and behavior of their stars, and the orbital dynamics and tidal forces acting on these worlds. David W. Brown, Smithsonian, "Searching for the Key to Life’s Beginnings," 2 July 2018 An asteroid or comet would have to venture very close to the Earth to be torn apart by tidal forces and form a ring around the Earth. Vahe Peroomian, The Conversation, "A brief astronomical history of Saturn’s amazing rings," 14 Aug. 2019 The year's first tropical system is due to land Saturday west of the city of 12,000 people, ushering in a 3 to 6 foot tidal surge on the already-high Atchafalaya River. Susan Scutti, CNN, "A Louisiana mayor fears torrential rain, not a tidal surge, will overwhelm his city's drainage pumping system," 12 July 2019 His notes also include phase of the moon, the tidal currents and the strength of the UV rays. Deborah Netburn, latimes.com, "A retired teacher found some seahorses off Long Beach. Then he built a secret world for them," 9 July 2019 The tidal surge during the storm at the marina allegedly damaged floating boat docks, a boat ramp, a metal shop building and a bath house, Sundholm claimed at the time. Zach Murdock, courant.com, "Old Saybrook man lied about Hurricane Sandy damage to obtain $1.6 million in disaster loans, prosecutors say," 10 June 2019 However, Kinder Morgan has pledge to create 50 acres of tidal salt marsh to mitigate those impacts. Marissa Luck, Houston Chronicle, "FERC approves Kinder Morgan's Gulf LNG project," 17 July 2019

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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More Definitions for tidal

tidal

adjective

English Language Learners Definition of tidal

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

tidal

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

Kids Definition of tidal

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

tidal

adjective
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

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