intertidal

American  

[in-ter-tahyd-l] / ˌɪn tərˈtaɪd l /

adjective

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

---

intertidal British  

/ ˌɪntəˈtaɪdəl /

adjective

1. of or relating to the zone of the shore between the high-water mark and low-water mark

---

intertidal Scientific  

/ ĭn′tər-tīd′l /

1. Relating to the region between the high tide mark and the low tide mark.

---

Etymology

Origin of intertidal

First recorded in 1880–85; inter- + tidal

Example Sentences

See Examples For:

intertidal

"However, the same cannot be said for intertidal systems" such as salt marshes and mudflats that line the coast and are exposed at low tide, he added.

From Barron's ● Mar. 17, 2026

Because of this barrier, less sand can flow from the North Sea into the estuary, resulting in clearer water that fails to replenish the intertidal areas, thus causing them to erode.

From Science Daily ● May 6, 2024

Additionally, the reduction in flow between the groynes could potentially benefit the stability of the intertidal coastal areas in the long term and mitigate the effects of rising sea levels.

From Science Daily ● May 6, 2024

An enormous intertidal zone touch tank is the main attraction and is filled with Salish Sea residents, including sand rose anemones, giant green anemones, sea stars and kelp crabs.

From Seattle Times ● Feb. 28, 2024

Age by age through gulfs of time at which imagination reels, life has been growing from a mere stirring in the intertidal slime towards freedom, power and consciousness.

From A Short History of the World by H. G. (Herbert George) Wells