tidal Meaning, Definition & Usage

  1. adjective of or relating to or caused by tides
    • tidal wave

WordNet

Tid"al adjective
Definitions
  1. Of or pertaining to tides; caused by tides; having tides; periodically rising and falling, or following and ebbing; as, tidal waters.
    The tidal wave of deeper souls Into our inmost being rolls, And lifts us unawares Out of all meaner cares. Longfellow.
    called in Japan tsunami.

Webster 1913