amphidromic
adjective
am·phi·drom·ic
: relating to a system of tidal action in which the tide wave progresses around a point or center of little or no tide
amphidromic point
amphidromic region
Word History
Etymology
Greek amphidromos running both ways (from amphi- + dromos course, racecourse) + English -ic
First Known Use
circa 1900, in the meaning defined above