Main Entry: tid·al

Pronunciation: \ˈtī-d^əl\

Function: adjective

Date: 1807

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>

— tid·al·ly \-d^əl-ē\ adverb