Definition of tidal
1a : of, relating to, caused by, or having tides tidal cycles tidal erosionb : 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
tidallyplay \-dəl-ē\ adverb
Recent Examples of tidal from the Web
The plan also calls for the creation of more areas that can accumulate surface water to limit roads and buildings inundated by rainfall and tidal flooding.
The tidal zone with a gleaming Mount Baker in the background is stellar, but the birds are the real stars.
Data from federal tide stations around Hawaii show that water levels have been up to six inches above predicted tidal heights since early last year.
The Tidal Basin is a reservoir with two sets of floodgates that open in turn as the tidal Potomac rises and falls, flushing silt and debris from the Washington Channel.
Many visitors choose to camp near the state park's tidal lakes and freshwater ponds.
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.
First Known Use of tidal
TIDAL Defined for English Language Learners
Definition of tidal for English Language Learners
: of or relating to tides : rising and falling at regular times
TIDAL Defined for Kids
Definition of tidal for Students
: of or relating to tides : flowing and ebbing like tides
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
Seen and Heard
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