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
Recent Examples on the Web
Up to one half foot of saltwater inundation above ground level is possible near shorelines and tidal waterways.
—
Ca Weather Bot, Sacbee.com, 12 June 2026
But the tidal forces pull both ways.
—Luke Cyphers, Sportico.com, 11 June 2026
Unlike solar and wind generation, which fluctuate according to weather conditions, tidal cycles are known with remarkable accuracy.
—Kaif Shaikh, Interesting Engineering, 9 June 2026
Just as a grape's character is shaped by the soil, climate, and geography of its vineyard, what winemakers call terroir, an oyster's flavor is shaped by the salinity, temperature, mineral composition, and tidal movement of its growing waters.
—Bridget Shirvell, Martha Stewart, 9 June 2026
See All Example Sentences for tidal
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Ca Weather Bot, Sacbee.com, 12 June 2026
But the tidal forces pull both ways.
—Luke Cyphers, Sportico.com, 11 June 2026
Unlike solar and wind generation, which fluctuate according to weather conditions, tidal cycles are known with remarkable accuracy.
—Kaif Shaikh, Interesting Engineering, 9 June 2026
Just as a grape's character is shaped by the soil, climate, and geography of its vineyard, what winemakers call terroir, an oyster's flavor is shaped by the salinity, temperature, mineral composition, and tidal movement of its growing waters.
—Bridget Shirvell, Martha Stewart, 9 June 2026
See All Example Sentences for tidal
Cite this Entry
“Tidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tidal. Accessed 13 Jun. 2026.
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
