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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The floating pavilion employs Archimedes’ principle and follows those shifts by rising and falling accordingly, allowing visitors to have a real, physical experience of the tidal rhythms.
—
Maryna Holovnova, New Atlas, 27 Nov. 2025
The very strong tidal forces from the Earth, remember that the Earth is very massive compared to the Moon (about 70 times as massive) and that the Moon was closer to Earth in the past, could very easily have resulted in the Moon forming already pre-locked to the Earth.
—Big Think, 26 Nov. 2025
The refuge has several miles of hiking and cycling paths and 17 miles of paddling trails through its tidal wetlands.
—Katie Riley, Travel + Leisure, 15 Nov. 2025
The study also provides a previously unidentified constraint for models of tidal heat production, shell thickness, and the long-term evolution of Enceladus’ ocean.
—Bojan Stojkovski, Interesting Engineering, 10 Nov. 2025
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Maryna Holovnova, New Atlas, 27 Nov. 2025
The very strong tidal forces from the Earth, remember that the Earth is very massive compared to the Moon (about 70 times as massive) and that the Moon was closer to Earth in the past, could very easily have resulted in the Moon forming already pre-locked to the Earth.
—Big Think, 26 Nov. 2025
The refuge has several miles of hiking and cycling paths and 17 miles of paddling trails through its tidal wetlands.
—Katie Riley, Travel + Leisure, 15 Nov. 2025
The study also provides a previously unidentified constraint for models of tidal heat production, shell thickness, and the long-term evolution of Enceladus’ ocean.
—Bojan Stojkovski, Interesting Engineering, 10 Nov. 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 1 Dec. 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?
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