adj. relating to, like, or affected by tides (tidal basin; tidal river).
Phrases and idioms:
tidal bore a large wave or bore caused by constriction of the spring tide as it enters a long narrow shallow inlet. tidal flow the regulated movement of traffic in opposite directions on the same stretch of road at different times of the day. tidal wave
1. Geog. an exceptionally large ocean wave esp. one caused by an underwater earthquake or volcanic eruption.
2 a widespread manifestation of feeling etc.
Derivatives:
tidally adv.