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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Some gather in dense flocks during migration and non-breeding season, feeding on tiny organisms that abound on tidal flats.
—
Cecilia Rodriguez, Forbes.com, 18 Sep. 2025
Operators like Flipper Finders run morning, afternoon, and sunset tours that explore tidal creeks, salt marshes, and open waterways, often stopping at historic Morris Island to hunt for seashells, fossils, and sand dollars.
—Alexandra Emanuelli, Southern Living, 18 Sep. 2025
Nearby, the Charlestown Breachway draws anglers, boaters, and campers, with tidal waters that connect Ninigret Pond lagoon to the Atlantic and a small state campground right on the shore.
—Lauren Dana Ellman, Travel + Leisure, 12 Sep. 2025
The immense gravity of these black holes causes tidal forces in this material that generate intense friction, heating gas and dust in the disk to temperatures as great as millions of degrees.
—Robert Lea, Space.com, 11 Sep. 2025
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Cecilia Rodriguez, Forbes.com, 18 Sep. 2025
Operators like Flipper Finders run morning, afternoon, and sunset tours that explore tidal creeks, salt marshes, and open waterways, often stopping at historic Morris Island to hunt for seashells, fossils, and sand dollars.
—Alexandra Emanuelli, Southern Living, 18 Sep. 2025
Nearby, the Charlestown Breachway draws anglers, boaters, and campers, with tidal waters that connect Ninigret Pond lagoon to the Atlantic and a small state campground right on the shore.
—Lauren Dana Ellman, Travel + Leisure, 12 Sep. 2025
The immense gravity of these black holes causes tidal forces in this material that generate intense friction, heating gas and dust in the disk to temperatures as great as millions of degrees.
—Robert Lea, Space.com, 11 Sep. 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 19 Sep. 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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