1
a
: 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
Examples of tidal in a Sentence
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Federal data from the nearby tidal gauge in Sewells Point, Virginia, dates back to the 1920s and shows sea level has risen six inches at that spot since 1990.
—
Dinah Voyles Pulver, USA Today, 5 Apr. 2025
The team also speculates that a phenomenon called tidal migration might be playing a role in shaping the occurrence rate of short-period planets.
—Victoria Corless, Space.com, 3 Apr. 2025
Nearby, explore Anastasia State Park, a 1600-acre property brimming with wildlife, stunning beaches, maritime hammocks, and tidal marshes.
—Lisa A. Beach, Southern Living, 30 Mar. 2025
In recent years, research has focused on other possible and often exotic factors, like tidal forces, lunar phases, solar eclipses, solar eruptions, retreating glaciers and weather patterns interacting with the planet’s crust, core and mantle.
—David Bressan, Forbes, 5 Mar. 2025
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Dinah Voyles Pulver, USA Today, 5 Apr. 2025
The team also speculates that a phenomenon called tidal migration might be playing a role in shaping the occurrence rate of short-period planets.
—Victoria Corless, Space.com, 3 Apr. 2025
Nearby, explore Anastasia State Park, a 1600-acre property brimming with wildlife, stunning beaches, maritime hammocks, and tidal marshes.
—Lisa A. Beach, Southern Living, 30 Mar. 2025
In recent years, research has focused on other possible and often exotic factors, like tidal forces, lunar phases, solar eclipses, solar eruptions, retreating glaciers and weather patterns interacting with the planet’s crust, core and mantle.
—David Bressan, Forbes, 5 Mar. 2025
See All Example Sentences for tidal
Cite this Entry
“Tidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tidal. Accessed 16 Apr. 2025.
Copy CitationKids Definition
tidal
adjective
tid·al
ˈtīd-ᵊl 
: of or relating to tides : rising and falling or flowing and ebbing at regular times
Medical Definition
tidal
adjective
tid·al
ˈtīd-ᵊl
: of, relating to, or constituting tidal air
interference with the normal tidal exchange of the lungs—F. R. Mautz & R. M. Hosler
F. R. Mautz & R. M. HoslerLove words? Need even more definitions?
Merriam-Webster unabridged
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