- intertidal⇄adj. 1. living between the high-water mark and the low-water mark, as limpets do.
2. located between the watermarks.
Ex. intertidal rocks. But in all the intertidal area the pulse of life is adjusted to the rhythm of the tides (New Yorker). - intertidal⇄intertidal, adjective, noun.
- intertidal⇄noun the region between the high-water mark and the low-water mark.