Cotidal

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Cotidal \Co*tid"al\ (k?-t?d"al), a.
     Marking an equality in the tides; having high tide at the
     same time.
     [1913 Webster]
  
     {Cotidal lines} (Phys. Geog.), lines on a map passing through


        places that have high tide at the same time.
        [1913 Webster] Cotillon