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.
Useful english dictionary. 2012.