As adjectives the difference between intertidal and subtidal
is that intertidal is pertaining to the part of a shore between the high water and the low water while subtidal is below the level of the tide.
intertidal
English
Adjective
(head)
Pertaining to the part of a shore between the high water and the low water.
Derived terms
* intertidal zone
* intertidally
See also
* littoral
subtidal
English
Adjective
(-)
below the level of the tide
Derived terms
* subtidally
See also
* intertidal
* peritidal