• synonyms


  1. of or relating to the littoral region that is above the low-water mark and below the high-water mark.
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Origin of intertidal

First recorded in 1880–85; inter- + tidal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for intertidal

Historical Examples of intertidal

British Dictionary definitions for intertidal


  1. of or relating to the zone of the shore between the high-water mark and low-water mark
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for intertidal


1883, from inter- + tidal.

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Online Etymology Dictionary, © 2010 Douglas Harper

intertidal in Science


  1. Relating to the region between the high tide mark and the low tide mark.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.