pertaining to a coincidence of tides.
(on a chart or map) indicating a line connecting points at which high tide occurs at the same time.

1825–35; co- + tidal Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To cotidal
World English Dictionary
cotidal (kəʊˈtaɪdəl)
(of a line on a tidal chart) joining points at which high tide occurs simultaneously

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
cotidal   (kō-tīd'l)  Pronunciation Key 
  1. Indicating coincidence of high tides or low tides.

  2. Relating to a line that passes through each location on a coastal map where tides occur at the same time of day. Cotidal maps show variation in the height of the tides and indicate the time of high tide occurrence. Cotidal charts can be made using tide gauge data from gauges at regular intervals along the coast; however, computer modeling is increasingly used, especially where the tides vary greatly over a short distance.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Cotidal lines of an inclosed sea, as derived from the equilibrium theory.
Related Words
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature